Albert E. Torrey photos on Flickr

Pandemic...Coronaviruses... COVID-19...A pandemic is an epidemic occurring on a scale that crosses international boundaries, by Hughes Songe

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The 1918–20 "Spanish flu" influenza pandemic resulted in dramatic mortality worldwide.

A pandemic (from Greek πᾶν, pan, 'all' and δῆμος, demos, 'people') is an epidemic of disease that has spread across a large region, for instance multiple continents, or worldwide. A widespread endemic disease with a stable number of infected people is not a pandemic. Further, flu pandemics generally exclude recurrences of seasonal flu.

Throughout history, there have been a number of pandemics of diseases such as smallpox and tuberculosis. One of the most devastating pandemics was the Black Death (also known as The Plague), which killed an estimated 75–200 million people in the 14th century. Other notable pandemics include the 1918 influenza pandemic (Spanish flu) and the 2009 flu pandemic (H1N1). Current pandemics include HIV/AIDS and the 2019–20 coronavirus pandemic.

Contents

1Definition and stages

2Management

3Current pandemics

3.1HIV/AIDS

3.2Coronavirus disease 2019 (COVID-19)

4Notable outbreaks

4.1Cholera

4.2Influenza

4.3Typhus

4.4Smallpox

4.5Measles

4.6Tuberculosis

4.7Leprosy

4.8Malaria

4.9Yellow fever

5Concerns about future pandemics

5.1Antibiotic resistance

5.2Viral hemorrhagic fevers

5.3Coronaviruses

5.4Influenza

5.5Zika virus

6Economic consequences

7Biological warfare

8In popular culture

9See also

10Notes

11References

12Further reading

13External links

Definition and stages[edit]

The World Health Organization's former influenza pandemic alert phases—WHO no longer uses this old system of six phases

A pandemic is an epidemic occurring on a scale that crosses international boundaries, usually affecting people on a worldwide scale.[1] Pandemics can also occur in important agricultural organisms (livestock, crop plants, fish, tree species) or in other organisms.[citation needed] A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious. For instance, cancer is responsible for many deaths but is not considered a pandemic because the disease is neither infectious nor contagious.[2]

The World Health Organization (WHO) previously applied a six-stage classification to describe the process by which a novel influenza virus moves from the first few infections in humans through to a pandemic. This starts with the virus mostly infecting animals, with a few cases where animals infect people, then moves through the stage where the virus begins to spread directly between people and ends with a pandemic when infections from the new virus have spread worldwide. In February 2020, a WHO spokesperson clarified that "there is no official category [for a pandemic]".[a][3]

In a virtual press conference in May 2009 on the influenza pandemic, Dr. Keiji Fukuda, Assistant Director-General ad interim for Health Security and Environment, WHO said "An easy way to think about pandemic ... is to say: a pandemic is a global outbreak. Then you might ask yourself: 'What is a global outbreak'? Global outbreak means that we see both spread of the agent ... and then we see disease activities in addition to the spread of the virus."[4]

In planning for a possible influenza pandemic, the WHO published a document on pandemic preparedness guidance in 1999, revised in 2005 and in February 2009, defining phases and appropriate actions for each phase in an aide-mémoire titled WHO pandemic phase descriptions and main actions by phase. The 2009 revision, including definitions of a pandemic and the phases leading to its declaration, were finalized in February 2009. The pandemic H1N1 2009 virus was neither on the horizon at that time nor mentioned in the document.[5][6] All versions of this document refer to influenza. The phases are defined by the spread of the disease; virulence and mortality are not mentioned in the current WHO definition, although these factors have previously been included.[7]

Management[edit]

See also: Mathematical modelling of infectious disease

The goals of community mitigation: (1) delay outbreak peak; (2) reduce peak burden on healthcare, known as flattening the curve; and (3) diminish overall cases and health impact.[8][9]

The basic strategies in the control of an outbreak are containment and mitigation. Containment may be undertaken in the early stages of the outbreak, including contact tracing and isolating infected individuals to stop the disease from spreading to the rest of the population, other public health interventions on infection control, and therapeutic countermeasures such as vaccinations which may be effective if available.[10] When it becomes apparent that it is no longer possible to contain the spread of the disease, it will then move on to the mitigation stage, when measures are taken to slow the spread of disease and mitigate its effects on the health care system and society. In reality, a combination of both containment and mitigation measures may be undertaken at the same time to control an outbreak.[11]

A key part of managing an infectious disease outbreak is trying to decrease the epidemic peak, known as flattening the epidemic curve.[8] This helps decrease the risk of health services being overwhelmed and providing more time for a vaccine and treatment to be developed.[8] Non-pharmaceutical interventions may be taken to manage the outbreak; for example in a flu pandemic, these actions may include personal preventive measures such as hand hygiene, wearing face-masks and self-quarantine; community measures aimed at social distancing such as closing schools and cancelling mass gathering events; community engagement to encourage acceptance and participation in such interventions; as well as environmental measures such as cleaning of surfaces.[9]

Another strategy, suppression, requires more extreme long-term non-pharmaceutical interventions so as to reverse the pandemic by reducing the basic reproduction number to less than 1. The suppression strategy, which include stringent population-wide social distancing, home isolation of cases and household quarantine, was undertaken by China during the 2019–20 coronavirus pandemic where entire cities were placed under lockdown, but such strategy carries with it considerable social and economic costs.[12]

Current pandemics[edit]

HIV/AIDS[edit]

Main article: AIDS pandemic

Estimated HIV/AIDS prevalence among young adults (15-49) by country as of 2008

HIV originated in Africa, and spread to the United States via Haiti between 1966 and 1972.[13] AIDS is currently a pandemic, with infection rates as high as 25% in southern and eastern Africa. In 2006, the HIV prevalence rate among pregnant women in South Africa was 29%.[14] Effective education about safer sexual practices and bloodborne infection precautions training have helped to slow down infection rates in several African countries sponsoring national education programs.[citation needed]

Coronavirus disease 2019 (COVID-19)[edit]

Main article: 2019–20 coronavirus pandemic

People queueing outside a Wuhan pharmacy to buy face masks and medical supplies

A new coronavirus was first identified in Wuhan, Hubei province, China, in late December 2019,[15] as causing a cluster of cases of an acute respiratory disease, referred to as coronavirus disease 2019 (COVID-19). According to media reports, more than 200 countries and territories have been affected, with major outbreaks in the United States, central China, Italy, Spain, and Iran.[16][17] On 11 March 2020, the World Health Organization characterized the spread of COVID-19 as a pandemic.[18][19] As of 3 April 2020, the number of SARS-CoV-2 infected persons reached one million, the death toll was 55,132 and the number of patients recovered was 225,335.[20]

Notable outbreaks[edit]

See also: List of epidemics, Columbian Exchange, and Globalization and disease

There have been a number of significant epidemics and pandemics recorded in human history, generally zoonoses such as influenza and tuberculosis, which came about with domestication of animals. There have been a number of particularly significant epidemics that deserve mention above the "mere" destruction of cities:

Plague of Athens, from 430 to 426 BCE. During the Peloponnesian War, typhoid fever killed a quarter of the Athenian troops, and a quarter of the population over four years. This disease fatally weakened the dominance of Athens, but the sheer virulence of the disease prevented its wider spread; i.e. it killed off its hosts at a rate faster than they could spread it. The exact cause of the plague was unknown for many years. In January 2006, researchers from the University of Athens analyzed teeth recovered from a mass grave underneath the city, and confirmed the presence of bacteria responsible for typhoid.[21]

Contemporary engraving of Marseille during the Great Plague of Marseille in 1720–1721

Antonine Plague, from 165 to 180 AD. Possibly smallpox brought to the Italian peninsula by soldiers returning from the Near East; it killed a quarter of those infected, and up to five million in all.[22] At the height of a second outbreak, the Plague of Cyprian (251–266), which may have been the same disease, 5,000 people a day were said to be dying in Rome.

Plague of Justinian, from 541 to 750, was the first recorded outbreak of the bubonic plague. It started in Egypt, and reached Constantinople the following spring, killing (according to the Byzantine chronicler Procopius) 10,000 a day at its height, and perhaps 40% of the city's inhabitants. The plague went on to eliminate a quarter to half the human population of the known world.[23][24] It caused Europe's population to drop by around 50% between 550 AD and 700 AD.[25]

Black Death, from 1331 to 1353. The total number of deaths worldwide is estimated at 75 to 200 million people.Black Death#cite ref-ABC/Reuters 1-1 Eight hundred years after the last outbreak, the plague returned to Europe. Starting in Asia, the disease reached Mediterranean and western Europe in 1348 (possibly from Italian merchants fleeing fighting in Crimea), and killed an estimated 20 to 30 million Europeans in six years;[26] a third of the total population,[27] and up to a half in the worst-affected urban areas.[28] It was the first of a cycle of European plague epidemics that continued until the 18th century.[29] There were more than 100 plague epidemics in Europe in this period.[30] The disease recurred in England every two to five years from 1361 to 1480.[31] By the 1370s, England's population was reduced by 50%.[32] The Great Plague of London of 1665–66 was the last major outbreak of the plague in England. The disease killed approximately 100,000 people, 20% of London's population.[33]

The third plague pandemic started in China in 1855, and spread to India, where 10 million people died.[34] During this pandemic, the United States saw its first outbreak: the San Francisco plague of 1900–1904.[35] Today, isolated cases of plague are still found in the western United States.[36]

Spanish flu, from 1918 to 1920. It infected 500 million people around the world,[37] including people on remote Pacific islands and in the Arctic, and resulted in the deaths of 50 to 100 million people.[37][38] Most influenza outbreaks disproportionately kill the very young and the very old, with higher survival rate for those in between, but the Spanish flu had an unusually high mortality rate for young adults.[39] Spanish flu killed more people than World War I did and it killed more people in 25 weeks than AIDS did in its first 25 years.[40][41] Mass troop movements and close quarters during World War I caused it to spread and mutate faster; the susceptibility of soldiers to Spanish flu might have been increased due to stress, malnourishment and chemical attacks.[42] Improved transportation systems made it easier for soldiers, sailors, and civilian travelers to spread the disease.[43]

Aztecs dying of smallpox, Florentine Codex (compiled 1540–1585)

Encounters between European explorers and populations in the rest of the world often introduced local epidemics of extraordinary virulence. Disease killed part of the native population of the Canary Islands in the 16th century (Guanches). Half the native population of Hispaniola in 1518 was killed by smallpox. Smallpox also ravaged Mexico in the 1520s, killing 150,000 in Tenochtitlán alone, including the emperor, and Peru in the 1530s, aiding the European conquerors.[44] Measles killed a further two million Mexican natives in the 17th century. In 1618–1619, smallpox wiped out 90% of the Massachusetts Bay Native Americans.[45] During the 1770s, smallpox killed at least 30% of the Pacific Northwest Native Americans.[46] Smallpox epidemics in 1780–1782 and 1837–1838 brought devastation and drastic depopulation among the Plains Indians.[47] Some believe the death of up to 95% of the Native American population of the New World was caused by Old World diseases such as smallpox, measles, and influenza.[48] Over the centuries, the Europeans had developed high degrees of immunity to these diseases, while the indigenous peoples had no such immunity.[49]

Smallpox devastated the native population of Australia, killing around 50% of Indigenous Australians in the early years of British colonisation.[50] It also killed many New Zealand Māori.[51] As late as 1848–49, as many as 40,000 out of 150,000 Hawaiians are estimated to have died of measles, whooping cough and influenza. Introduced diseases, notably smallpox, nearly wiped out the native population of Easter Island.[52] Measles killed more than 40,000 Fijians, approximately one-third of the population, in 1875,[53] and in the early 21st century devastated the Andamanese population.[54] The Ainu population decreased drastically in the 19th century, due in large part to infectious diseases brought by Japanese settlers pouring into Hokkaido.[55]

Researchers concluded that syphilis was carried from the New World to Europe after Columbus' voyages. The findings suggested Europeans could have carried the nonvenereal tropical bacteria home, where the organisms may have mutated into a more deadly form in the different conditions of Europe.[56] The disease was more frequently fatal than it is today. Syphilis was a major killer in Europe during the Renaissance.[57] Between 1602 and 1796, the Dutch East India Company sent almost a million Europeans to work in Asia. Ultimately, fewer than a third made their way back to Europe. The majority died of diseases.[58] Disease killed more British soldiers in India and South Africa than war.[59]

As early as 1803, the Spanish Crown organized a mission (the Balmis expedition) to transport the smallpox vaccine to the Spanish colonies, and establish mass vaccination programs there.[60] By 1832, the federal government of the United States established a smallpox vaccination program for Native Americans.[61] From the beginning of the 20th century onwards, the elimination or control of disease in tropical countries became a driving force for all colonial powers.[62] The sleeping sickness epidemic in Africa was arrested due to mobile teams systematically screening millions of people at risk.[63] In the 20th century, the world saw the biggest increase in its population in human history due to lessening of the mortality rate in many countries due to medical advances.[64] The world population has grown from 1.6 billion in 1900 to an estimated 6.8 billion in 2011.[65]

Cholera[edit]

Main article: Cholera outbreaks and pandemics

Since it became widespread in the 19th century, cholera has killed tens of millions of people.[66]

1817–1824 cholera pandemic. Previously restricted to the Indian subcontinent, the pandemic began in Bengal, then spread across India by 1820. 10,000 British troops and countless Indians died during this pandemic.[67] It extended as far as China, Indonesia (where more than 100,000 people succumbed on the island of Java alone) and the Caspian Sea before receding. Deaths in the Indian subcontinent between 1817 and 1860 are estimated to have exceeded 15 million persons. Another 23 million died between 1865 and 1917. Russian deaths during a similar period exceeded 2 million.[68]

1826–1837 cholera pandemic. Reached Russia (see Cholera Riots), Hungary (about 100,000 deaths) and Germany in 1831, London in 1832 (more than 55,000 persons died in the United Kingdom),[69] France, Canada (Ontario), and United States (New York City) in the same year,[70] and the Pacific coast of North America by 1834. It is believed that more than 150,000 Americans died of cholera between 1832 and 1849.[71]

1846–1860 cholera pandemic. Deeply affected Russia, with more than a million deaths. A two-year outbreak began in England and Wales in 1848 and claimed 52,000 lives.[72] Throughout Spain, cholera caused more than 236,000 deaths in 1854–55.[73] It claimed 200,000 lives in Mexico.[74]

1863–75 cholera pandemic. Spread mostly in Europe and Africa. At least 30,000 of the 90,000 Mecca pilgrims fell victim to the disease. Cholera claimed 90,000 lives in Russia in 1866.[75]

In 1866, there was an outbreak in North America. It killed some 50,000 Americans.[71]

1881–96 cholera pandemic. The 1883–1887 epidemic cost 250,000 lives in Europe and at least 50,000 in the Americas. Cholera claimed 267,890 lives in Russia (1892);[76] 120,000 in Spain;[77] 90,000 in Japan and 60,000 in Persia.

In 1892, cholera contaminated the water supply of Hamburg, and caused 8,606 deaths.[78]

1899–1923 cholera pandemic. Had little effect in Europe because of advances in public health, but Russia was badly affected again (more than 500,000 people dying of cholera during the first quarter of the 20th century).[79] The sixth pandemic killed more than 800,000 in India. The 1902–1904 cholera epidemic claimed more than 200,000 lives in the Philippines.[80]

1961–75 cholera pandemic. Began in Indonesia, called El Tor after the new biotype responsible for the pandemic, and reached Bangladesh in 1963, India in 1964, and the Soviet Union in 1966. Since then the pandemic has reached Africa, South America, and Central America.

Influenza[edit]

Main article: Influenza pandemic

Advice for travelers (in French and English) on the risks of epidemics abroad; posters from the Charles De Gaulle airport, Paris

The Greek physician Hippocrates, the "Father of Medicine", first described influenza in 412 BC.[81]

The first influenza pandemic was recorded in 1580, and since then, influenza pandemics occurred every 10 to 30 years.[82][83][84]

The 1889–1890 flu pandemic, also known as Russian Flu, was first reported in May 1889 in Bukhara, Uzbekistan. By October, it had reached Tomsk and the Caucasus. It rapidly spread west and hit North America in December 1889, South America in February–April 1890, India in February–March 1890, and Australia in March–April 1890. The H3N8 and H2N2 subtypes of the Influenza A virus have each been identified as possible causes. It had a very high attack and mortality rate, causing around a million fatalities.[85]

The "Spanish flu", 1918–1919. First identified early in March 1918 in U.S. troops training at Camp Funston, Kansas. By October 1918, it had spread to become a worldwide pandemic on all continents, and eventually infected about one-third of the world's population (or ≈500 million persons).[37] Unusually deadly and virulent, it ended almost as quickly as it began, vanishing completely within 18 months. Within six months, some 50 million people were dead;[37] some estimates put the total number of fatalities worldwide at over twice that number.[86] About 17 million died in India, 675,000 in the United States,[87] and 200,000 in the United Kingdom. The virus that caused Spanish flu was also implicated as a cause of encephalitis lethargica in children.[88] The virus was recently reconstructed by scientists at the CDC studying remains preserved by the Alaskan permafrost. The H1N1 virus has a small but crucial structure that is similar to the Spanish flu.[89]

The "Asian Flu", 1957–58. A H2N2 virus first identified in China in late February 1957. It caused about two million deaths globally.[90] The Asian flu spread to the United States by June 1957 and caused about 70,000 deaths in the U.S.

The "Hong Kong Flu", 1968–69. A H3N2 virus first detected in Hong Kong in early 1968, and spread to the United States later that year. This pandemic of 1968 and 1969 killed approximately one million people worldwide.[91] It caused about 34,000 deaths in the United States.

The "Swine Flu", 2009–10. An H1N1 virus first detected in Mexico in early 2009, and spread to the United States later that year. This pandemic was estimated to have killed around 284,000 people worldwide.[92][failed verification] It was estimated to have caused about 12,000 deaths in the United States alone.

Typhus[edit]

Typhus is sometimes called "camp fever" because of its pattern of flaring up in times of strife. (It is also known as "gaol fever" and "ship fever", for its habits of spreading wildly in cramped quarters, such as jails and ships.) Emerging during the Crusades, it had its first impact in Europe in 1489, in Spain. During fighting between the Christian Spaniards and the Muslims in Granada, the Spanish lost 3,000 to war casualties, and 20,000 to typhus. In 1528, the French lost 18,000 troops in Italy, and lost supremacy in Italy to the Spanish. In 1542, 30,000 soldiers died of typhus while fighting the Ottomans in the Balkans.

During the Thirty Years' War (1618–1648), about eight million Germans were killed by bubonic plague and typhus.[93] The disease also played a major role in the destruction of Napoleon's Grande Armée in Russia in 1812. During the retreat from Moscow, more French military personnel died of typhus than were killed by the Russians.[94] Of the 450,000 soldiers who crossed the Neman on 25 June 1812, fewer than 40,000 returned. More military personnel were killed from 1500–1914 by typhus than from military action.[95] In early 1813, Napoleon raised a new army of 500,000 to replace his Russian losses. In the campaign of that year, more than 219,000 of Napoleon's soldiers died of typhus.[96] Typhus played a major factor in the Irish Potato Famine. During World War I, typhus epidemics killed more than 150,000 in Serbia. There were about 25 million infections and 3 million deaths from epidemic typhus in Russia from 1918 to 1922.[96] Typhus also killed numerous prisoners in the Nazi concentration camps and Soviet prisoner of war camps during World War II. More than 3.5 million Soviet POWs died out of the 5.7 million in Nazi custody.[97]

Smallpox[edit]

A child with smallpox infection, c. 1908

Smallpox was a contagious disease caused by the variola virus. The disease killed an estimated 400,000 Europeans per year during the closing years of the 18th century.[98] During the 20th century, it is estimated that smallpox was responsible for 300–500 million deaths.[99][100] As recently as the early 1950s, an estimated 50 million cases of smallpox occurred in the world each year.[101] After successful vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in December 1979. To this day, smallpox is the only human infectious disease to have been completely eradicated,[102] and one of two infectious viruses ever to be eradicated along with rinderpest.[103]

Measles[edit]

Historically, measles was prevalent throughout the world, as it is highly contagious. According to the U.S. National Immunization Program, 90% of people were infected with measles by age 15. Before the vaccine was introduced in 1963, there were an estimated three to four million cases in the U.S. each year.[104] Measles killed around 200 million people worldwide over the last 150 years.[105] In 2000 alone, measles killed some 777,000 worldwide out of 40 million cases globally.[106]

Measles is an endemic disease, meaning it has been continually present in a community, and many people develop resistance. In populations that have not been exposed to measles, exposure to a new disease can be devastating. In 1529, a measles outbreak in Cuba killed two-thirds of the natives who had previously survived smallpox.[107] The disease had ravaged Mexico, Central America, and the Inca civilization.[108]

Tuberculosis[edit]

In 2007, the prevalence of TB per 100,000 people was highest in Sub-Saharan Africa, and was also relatively high in Asian countries like India.

One-quarter of the world's current population has been infected with Mycobacterium tuberculosis, and new infections occur at a rate of one per second.[109] About 5–10% of these latent infections will eventually progress to active disease, which, if left untreated, kills more than half its victims. Annually, eight million people become ill with tuberculosis, and two million die from the disease worldwide.[110] In the 19th century, tuberculosis killed an estimated one-quarter of the adult population of Europe;[111] by 1918, one in six deaths in France were still caused by tuberculosis. During the 20th century, tuberculosis killed approximately 100 million people.[105] TB is still one of the most important health problems in the developing world.[112]

Leprosy[edit]

Leprosy, also known as Hansen's disease, is caused by a bacillus, Mycobacterium leprae. It is a chronic disease with an incubation period of up to five years. Since 1985, 15 million people worldwide have been cured of leprosy.[113]

Historically, leprosy has affected people since at least 600 BC.[114] Leprosy outbreaks began to occur in Western Europe around 1000 AD.[115][116] Numerous leprosoria, or leper hospitals, sprang up in the Middle Ages; Matthew Paris estimated that in the early 13th century, there were 19,000 of them across Europe.[117]

Malaria[edit]

Past and current malaria prevalence in 2009

Malaria is widespread in tropical and subtropical regions, including parts of the Americas, Asia, and Africa. Each year, there are approximately 350–500 million cases of malaria.[118] Drug resistance poses a growing problem in the treatment of malaria in the 21st century, since resistance is now common against all classes of antimalarial drugs, except for the artemisinins.[119]

Malaria was once common in most of Europe and North America, where it is now for all purposes non-existent.[120] Malaria may have contributed to the decline of the Roman Empire.[121] The disease became known as "Roman fever".[122] Plasmodium falciparum became a real threat to colonists and indigenous people alike when it was introduced into the Americas along with the slave trade. Malaria devastated the Jamestown colony and regularly ravaged the South and Midwest of the United States. By 1830, it had reached the Pacific Northwest.[123] During the American Civil War, there were more than 1.2 million cases of malaria among soldiers of both sides.[124] The southern U.S. continued to be afflicted with millions of cases of malaria into the 1930s.[125]

Yellow fever[edit]

Yellow fever has been a source of several devastating epidemics.[126] Cities as far north as New York, Philadelphia, and Boston were hit with epidemics. In 1793, one of the largest yellow fever epidemics in U.S. history killed as many as 5,000 people in Philadelphia—roughly 10% of the population. About half of the residents had fled the city, including President George Washington.[127] In colonial times, West Africa became known as "the white man's grave" because of malaria and yellow fever.[128]

Concerns about future pandemics[edit]

See also[edit]

Pandemic portal

iconViruses portal

List of epidemics

Biological hazard

Bushmeat

Compartmental models in epidemiology

Crowdmapping

Disease X

European Centre for Disease Prevention and Control (ECDC)

Mathematical modelling of infectious disease

Medieval demography

Mortality from infectious diseases

Pandemic severity index

Public health emergency of international concern

Super-spreader

Syndemic

Tropical disease

Timeline of global health

WHO pandemic phases

Notes[edit]

^ For clarification, WHO does not use the old system of six phases—ranging from phase 1 (no reports of animal influenza causing human infections) to phase 6 (a pandemic)—that some people may be familiar with from H1N1 in 2009.

References[edit]

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Capitol Reef National Park, Utah, USA. by HISTOGRAPHY by DM & DBM.

9 1

Capitol Reef National Park is an American national park in south-central Utah. The park is approximately 60 miles (97 km) long on its north–south axis and just 6 miles (9.7 km) wide on average. The park was established in 1971 to preserve 241,904 acres (377.98 sq mi; 97,895.08 ha; 978.95 km2) of desert landscape and is open all year, with May through September being the highest visitation months.

Partially in Wayne County, Utah, the area was originally named "Wayne Wonderland" in the 1920s by local boosters Ephraim P. Pectol and Joseph S. Hickman. Capitol Reef National Park was designated a national monument on August 2, 1937, by President Franklin D. Roosevelt to protect the area's colorful canyons, ridges, buttes, and monoliths; however, it was not until 1950 that the area officially opened to the public. Road access was improved in 1962 with the construction of State Route 24 through the Fremont River Canyon.

The majority of the nearly 100 mi (160 km) long up-thrust formation called the Waterpocket Fold—a rocky spine extending from Thousand Lake Mountain to Lake Powell—is preserved within the park. Capitol Reef is an especially rugged and spectacular segment of the Waterpocket Fold by the Fremont River. The park was named for its whitish Navajo Sandstone cliffs with dome formations—similar to the white domes often placed on capitol buildings—that run from the Fremont River to Pleasant Creek on the Waterpocket Fold. Locally, reef refers to any rocky barrier to land travel, just as ocean reefs are barriers to sea travel.

Capitol Reef encompasses the Waterpocket Fold, a warp in the earth's crust that is 65 million years old. It is the largest exposed monocline in North America. In this fold, newer and older layers of earth folded over each other in an S-shape. This warp, probably caused by the same colliding continental plates that created the Rocky Mountains, has weathered and eroded over millennia to expose layers of rock and fossils. The park is filled with brilliantly colored sandstone cliffs, gleaming white domes, and contrasting layers of stone and earth.

The area was named for a line of white domes and cliffs of Navajo Sandstone, each of which looks somewhat like the United States Capitol building, that run from the Fremont River to Pleasant Creek on the Waterpocket Fold.

The fold forms a north-to-south barrier that has barely been breached by roads. Early settlers referred to parallel impassable ridges as "reefs", from which the park gets the second half of its name. The first paved road was constructed through the area in 1962. State Route 24 cuts through the park traveling east and west between Canyonlands National Park and Bryce Canyon National Park, but few other paved roads invade the rugged landscape.

The park is filled with canyons, cliffs, towers, domes, and arches. The Fremont River has cut canyons through parts of the Waterpocket Fold, but most of the park is arid desert. A scenic drive shows park visitors some highlights, but it runs only a few miles from the main highway. Hundreds of miles of trails and unpaved roads lead into the equally scenic backcountry.

Fremont-culture Native Americans lived near the perennial Fremont River in the northern part of the Capitol Reef Waterpocket Fold around the year 1000. They irrigated crops of maize and squash and stored their grain in stone granaries (in part made from the numerous black basalt boulders that litter the area). In the 13th century, all of the Native American cultures in this area underwent sudden change, likely due to a long drought. The Fremont settlements and fields were abandoned.

Many years after the Fremont left, Paiutes moved into the area. These Numic-speaking people named the Fremont granaries moki huts and thought they were the homes of a race of tiny people or moki.

In 1872 Almon H. Thompson, a geographer attached to United States Army Major John Wesley Powell's expedition, crossed the Waterpocket Fold while exploring the area. Geologist Clarence Dutton later spent several summers studying the area's geology. None of these expeditions explored the Waterpocket Fold to any great extent.

Following the American Civil War, officials of the Church of Jesus Christ of Latter-day Saints in Salt Lake City sought to establish missions in the remotest niches of the Intermountain West. In 1866, a quasi-military expedition of Mormons in pursuit of natives penetrated the high valleys to the west. In the 1870s, settlers moved into these valleys, eventually establishing Loa, Fremont, Lyman, Bicknell, and Torrey.

Mormons settled the Fremont River valley in the 1880s and established Junction (later renamed Fruita), Caineville, and Aldridge. Fruita prospered, Caineville barely survived, and Aldridge died. In addition to farming, lime was extracted from local limestone, and uranium was extracted early in the 20th century. In 1904 the first claim to a uranium mine in the area was staked. The resulting Oyler Mine in Grand Wash produced uranium ore.

By 1920 no more than ten families at one time were sustained by the fertile flood plain of the Fremont River and the land changed ownership over the years. The area remained isolated. The community was later abandoned and later still some buildings were restored by the National Park Service. Kilns once used to produce lime are still in Sulphur Creek and near the campgrounds on Scenic Drive.

Local Ephraim Portman Pectol organized a "booster club" in Torrey in 1921. Pectol pressed a promotional campaign, furnishing stories to be sent to periodicals and newspapers. In his efforts, he was increasingly aided by his brother-in-law, Joseph S. Hickman, who was the Wayne County High School principal. In 1924, Hickman extended community involvement in the promotional effort by organizing a Wayne County-wide Wayne Wonderland Club. That same year, Hickman was elected to the Utah State Legislature.

In 1933, Pectol was elected to the presidency of the Associated Civics Club of Southern Utah, successor to the Wayne Wonderland Club. The club raised U.S. $150 (equivalent to $3,391 in 2022) to interest a Salt Lake City photographer in taking a series of promotional photographs. For several years, the photographer, J. E. Broaddus, traveled and lectured on "Wayne Wonderland".

In 1933, Pectol was elected to the legislature and almost immediately contacted President Franklin D. Roosevelt and asked for the creation of "Wayne Wonderland National Monument" out of the federal lands comprising the bulk of the Capitol Reef area. Federal agencies began a feasibility study and boundary assessment. Meanwhile, Pectol guided the government investigators on numerous trips and escorted an increasing number of visitors. The lectures of Broaddus were having an effect.

Roosevelt signed a proclamation creating Capitol Reef National Monument on August 2, 1937. In Proclamation 2246, President Roosevelt set aside 37,711 acres (15,261 ha) of the Capitol Reef area. This comprised an area extending about two miles (3 km) north of present State Route 24 and about 10 mi (16 km) south, just past Capitol Gorge. The Great Depression years were lean ones for the National Park Service (NPS), the new administering agency. Funds for the administration of Capitol Reef were nonexistent; it would be a long time before the first rangers would arrive.

Administration of the new monument was placed under the control of Zion National Park. A stone ranger cabin and the Sulphur Creek bridge were built and some road work was performed by the Civilian Conservation Corps and the Works Progress Administration. Historian and printer Charles Kelly came to know NPS officials at Zion well and volunteered to watchdog the park for the NPS. Kelly was officially appointed custodian-without-pay in 1943. He worked as a volunteer until 1950, when the NPS offered him a civil-service appointment as the first superintendent.

During the 1950s Kelly was deeply troubled by NPS management acceding to demands of the U.S. Atomic Energy Commission that Capitol Reef National Monument be opened to uranium prospecting. He felt that the decision had been a mistake and destructive of the long-term national interest. It turned out that there was not enough ore in the monument to be worth mining.

In 1958 Kelly got additional permanent help in protecting the monument and enforcing regulations; Park Ranger Grant Clark transferred from Zion. The year Clark arrived, fifty-six thousand visitors came to the park, and Charlie Kelly retired for the last time.

During the 1960s (under the program name Mission 66), NPS areas nationwide received new facilities to meet the demand of mushrooming park visitation. At Capitol Reef, a 53-site campground at Fruita, staff rental housing, and a new visitor center were built, the latter opening in 1966.

Visitation climbed dramatically after the paved, all-weather State Route 24 was built in 1962 through the Fremont River canyon near Fruita. State Route 24 replaced the narrow Capitol Gorge wagon road about 10 mi (16 km) to the south that frequently washed out. The old road has since been open only to foot traffic. In 1967, 146,598 persons visited the park. The staff was also growing.

During the 1960s, the NPS purchased private land parcels at Fruita and Pleasant Creek. Almost all private property passed into public ownership on a "willing buyer-willing seller" basis.

Preservationists convinced President Lyndon B. Johnson to set aside an enormous area of public lands in 1968, just before he left office. In Presidential Proclamation 3888 an additional 215,056 acres (87,030 ha) were placed under NPS control. By 1970, Capitol Reef National Monument comprised 254,251 acres (102,892 ha) and sprawled southeast from Thousand Lake Mountain almost to the Colorado River. The action was controversial locally, and NPS staffing at the monument was inadequate to properly manage the additional land.

The vast enlargement of the monument and diversification of the scenic resources soon raised another issue: whether Capitol Reef should be a national park, rather than a monument. Two bills were introduced into the United States Congress.

A House bill (H.R. 17152) introduced by Utah Congressman Laurence J. Burton called for a 180,000-acre (72,800 ha) national park and an adjunct 48,000-acre (19,400 ha) national recreation area where multiple use (including grazing) could continue indefinitely. In the United States Senate, meanwhile, Senate bill S. 531 had already passed on July 1, 1970, and provided for a 230,000-acre (93,100 ha) national park alone. The bill called for a 25-year phase-out of grazing.

In September 1970, United States Department of Interior officials told a house subcommittee session that they preferred about 254,000 acres (103,000 ha) be set aside as a national park. They also recommended that the grazing phase-out period be 10 years, rather than 25. They did not favor the adjunct recreation area.

It was not until late 1971 that Congressional action was completed. By then, the 92nd United States Congress was in session and S. 531 had languished. A new bill, S. 29, was introduced in the Senate by Senator Frank E. Moss of Utah and was essentially the same as the defunct S. 531 except that it called for an additional 10,834 acres (4,384 ha) of public lands for a Capitol Reef National Park. In the House, Utah Representative K. Gunn McKay (with Representative Lloyd) had introduced H.R. 9053 to replace the dead H.R. 17152. This time, the House bill dropped the concept of an adjunct Capitol Reef National Recreation Area and adopted the Senate concept of a 25-year limit on continued grazing. The Department of Interior was still recommending a national park of 254,368 acres (102,939 ha) and a 10-year limit for grazing phase-out.

S. 29 passed the Senate in June and was sent to the House, which dropped its own bill and passed the Senate version with an amendment. Because the Senate was not in agreement with the House amendment, differences were worked out in Conference Committee. The Conference Committee issued its report on November 30, 1971, and the bill passed both houses of Congress. The legislation—'An Act to Establish The Capitol Reef National Park in the State of Utah'—became Public Law 92-207 when it was signed by President Richard Nixon on December 18, 1971.

The area including the park was once the edge of a shallow sea that invaded the land in the Permian, creating the Cutler Formation. Only the sandstone of the youngest member of the Cutler Formation, the White Rim, is exposed in the park. The deepening sea left carbonate deposits, forming the limestone of the Kaibab Limestone, the same formation that rims the Grand Canyon to the southwest.

During the Triassic, streams deposited reddish-brown silt that later became the siltstone of the Moenkopi Formation. Uplift and erosion followed. Conglomerate, followed by logs, sand, mud, and wind-transported volcanic ash, then formed the uranium-containing Chinle Formation.

The members of the Glen Canyon Group were all laid down in the middle- to late-Triassic during a time of increasing aridity. They include:

Wingate Sandstone: sand dunes on the shore of an ancient sea

Kayenta Formation: thin-bedded layers of sand deposited by slow-moving streams in channels and across low plains

Navajo Sandstone: huge fossilized sand dunes from a massive Sahara-like desert.

The Golden Throne. Though Capitol Reef is famous for white domes of Navajo Sandstone, this dome's color is a result of a lingering section of yellow Carmel Formation carbonate, which has stained the underlying rock.

The San Rafael Group consists of four Jurassic-period formations, from oldest to youngest:

Carmel Formation: gypsum, sand, and limey silt laid down in what may have been a graben that was periodically flooded by sea water

Entrada Sandstone: sandstone from barrier islands/sand bars in a near-shore environment

Curtis Formation: made from conglomerate, sandstone, and shale

Summerville Formation: reddish-brown mud and white sand deposited in tidal flats.

Streams once again laid down mud and sand in their channels, on lakebeds, and in swampy plains, creating the Morrison Formation. Early in the Cretaceous, similar nonmarine sediments were laid down and became the Dakota Sandstone. Eventually, the Cretaceous Seaway covered the Dakota, depositing the Mancos Shale.

Only small remnants of the Mesaverde Group are found, capping a few mesas in the park's eastern section.

Near the end of the Cretaceous period, a mountain-building event called the Laramide orogeny started to compact and uplift the region, forming the Rocky Mountains and creating monoclines such as the Waterpocket Fold in the park. Ten to fifteen million years ago, the entire region was uplifted much further by the creation of the Colorado Plateau. This uplift was very even. Igneous activity in the form of volcanism and dike and sill intrusion also occurred during this time.

The drainage system in the area was rearranged and steepened, causing streams to downcut faster and sometimes change course. Wetter times during the ice ages of the Pleistocene increased the rate of erosion.

There are more than 840 species of plants that are found in the park and over 40 of those species are classified as rare and endemic.

The closest town to Capitol Reef is Torrey, about 11 mi (18 km) west of the visitor center on Highway 24, slightly west of its intersection with Highway 12. Its 2020 population is less than 300. Torrey has a few motels and restaurants and functions as a gateway town to Capitol Reef National Park. Highway 12, as well as a partially unpaved scenic backway named the Burr Trail, provide access from the west through the Grand Staircase–Escalante National Monument and the town of Boulder.

A variety of activities are available to tourists, both ranger-led and self-guided, including auto touring, hiking, backpacking, camping, bicycling (on paved and unpaved roads only; no trails), horseback riding, canyoneering, and rock climbing. The orchards planted by Mormon pioneers are maintained by the National Park Service. From early March to mid-October, various fruit—cherries, apricots, peaches, pears, or apples—can be harvested by visitors for a fee.

A hiking trail guide is available at the visitor center for both day hikes and backcountry hiking. Backcountry access requires a free permit.

Numerous trails are available for hiking and backpacking in the park, with fifteen in the Fruita District alone. The following trails are some of the most popular in the park:

Cassidy Arch Trail: a very steep, strenuous 3.5 mi (5.6 km) round trip that leads into the Grand Wash to an overlook of the Cassidy Arch.

Hickman Bridge Trail: a 2 mi (3.2 km) round trip leading to the natural bridge.

Frying Pan Trail: an 8.8 mi (14.2 km) round trip that passes the Cassidy Arch, Grand Wash, and Cohab Canyon.

Brimhall Natural Bridge: a popular, though strenuous, 4.5 mi (7.2 km) round trip with views of Brimhall Canyon, the Waterpocket Fold, and Brimhall Natural Bridge.

Halls Creek Narrows: 22 mi (35 km) long and considered strenuous, with many side canyons and creeks; typically hiked as a 2-3 day camping trip.

Visitors may explore several of the main areas of the park by private vehicle:

Scenic Drive: winds through the middle of the park, passing the major points of interest; the road is accessible from the visitor center to approximately 2 mi (3.2 km) into the Capitol Gorge.

Notom-Bullfrog Road: traverses the eastern side of the Waterpocket Fold, along 10 mi (16 km) of paved road, with the remainder unpaved.

Cathedral Road: an unpaved road through the northern areas of the park, that traverses Cathedral Valley, passing the Temples of the Sun and Moon.

The primary camping location is the Fruita campground, with 71 campsites (no water, electrical, or sewer hookups), and restrooms without bathing facilities. The campground also has group sites with picnic areas and restrooms. Two primitive free camping areas are also available.

Canyoneering is growing in popularity in the park. It is a recreational sport that takes one through slot canyons. It involves rappelling and may require swimming and other technical rope work. Day-pass permits are required for canyoneering in the park, and can be obtained for free from the visitor's center or through email. It's key to know that each route requires its own permit. If one is planning on canyoneering for multiple days, passes are required for each day. Overnight camping as part of the canyoneering trip is permitted, but one must request a free backcountry pass from the visitor center.

It is imperative to plan canyoneering trips around the weather. The Colorado Plateau is susceptible to flash flooding during prime rainy months. Because canyoneering takes place through slot canyons, getting caught in a flash flood could be lethal. Take care to consult reliable weather sources. The Weather Atlas shows charts with the monthly average rainfall in inches.

Another risk to be aware of during the summer months is extreme heat. Visitors can find weather warnings on the National Weather Service website. The heat levels are detailed by a color and numerical scale (0-4).

One of the most popular canyoneering routes in Capitol Reef National Park is Cassidy Arch Canyon. A paper by George Huddart, details the park's commitment to working with citizens to maintain the route as well as the vegetation and rocks. The canyon route is approximately 2.3 miles long (0.4 miles of technical work), consisting of 8 different rappels, and takes between 2.5 and 4.5 hours to complete. The first rappel is 140 ft and descends below the famous Cassidy Arch.

Utah is a landlocked state in the Mountain West subregion of the Western United States. It borders Colorado to its east, Wyoming to its northeast, Idaho to its north, Arizona to its south, and Nevada to its west. Utah also touches a corner of New Mexico in the southeast. Of the fifty U.S. states, Utah is the 13th-largest by area; with a population over three million, it is the 30th-most-populous and 11th-least-densely populated. Urban development is mostly concentrated in two areas: the Wasatch Front in the north-central part of the state, which is home to roughly two-thirds of the population and includes the capital city, Salt Lake City; and Washington County in the southwest, with more than 180,000 residents. Most of the western half of Utah lies in the Great Basin.

Utah has been inhabited for thousands of years by various indigenous groups such as the ancient Puebloans, Navajo, and Ute. The Spanish were the first Europeans to arrive in the mid-16th century, though the region's difficult geography and harsh climate made it a peripheral part of New Spain and later Mexico. Even while it was Mexican territory, many of Utah's earliest settlers were American, particularly Mormons fleeing marginalization and persecution from the United States via the Mormon Trail. Following the Mexican–American War in 1848, the region was annexed by the U.S., becoming part of the Utah Territory, which included what is now Colorado and Nevada. Disputes between the dominant Mormon community and the federal government delayed Utah's admission as a state; only after the outlawing of polygamy was it admitted in 1896 as the 45th.

People from Utah are known as Utahns. Slightly over half of all Utahns are Mormons, the vast majority of whom are members of the Church of Jesus Christ of Latter-day Saints (LDS Church), which has its world headquarters in Salt Lake City; Utah is the only state where a majority of the population belongs to a single church. A 2023 paper challenged this perception (claiming only 42% of Utahns are Mormons) however most statistics still show a majority of Utah residents belong to the LDS church; estimates from the LDS church suggests 60.68% of Utah's population belongs to the church whilst some sources put the number as high as 68%. The paper replied that membership count done by the LDS Church is too high for several reasons. The LDS Church greatly influences Utahn culture, politics, and daily life, though since the 1990s the state has become more religiously diverse as well as secular.

Utah has a highly diversified economy, with major sectors including transportation, education, information technology and research, government services, mining, multi-level marketing, and tourism. Utah has been one of the fastest growing states since 2000, with the 2020 U.S. census confirming the fastest population growth in the nation since 2010. St. George was the fastest-growing metropolitan area in the United States from 2000 to 2005. Utah ranks among the overall best states in metrics such as healthcare, governance, education, and infrastructure. It has the 12th-highest median average income and the least income inequality of any U.S. state. Over time and influenced by climate change, droughts in Utah have been increasing in frequency and severity, putting a further strain on Utah's water security and impacting the state's economy.

The History of Utah is an examination of the human history and social activity within the state of Utah located in the western United States.

Archaeological evidence dates the earliest habitation of humans in Utah to about 10,000 to 12,000 years ago. Paleolithic people lived near the Great Basin's swamps and marshes, which had an abundance of fish, birds, and small game animals. Big game, including bison, mammoths and ground sloths, also were attracted to these water sources. Over the centuries, the mega-fauna died, this population was replaced by the Desert Archaic people, who sheltered in caves near the Great Salt Lake. Relying more on gathering than the previous Utah residents, their diet was mainly composed of cattails and other salt tolerant plants such as pickleweed, burro weed and sedge. Red meat appears to have been more of a luxury, although these people used nets and the atlatl to hunt water fowl, ducks, small animals and antelope. Artifacts include nets woven with plant fibers and rabbit skin, woven sandals, gaming sticks, and animal figures made from split-twigs. About 3,500 years ago, lake levels rose and the population of Desert Archaic people appears to have dramatically decreased. The Great Basin may have been almost unoccupied for 1,000 years.

The Fremont culture, named from sites near the Fremont River in Utah, lived in what is now north and western Utah and parts of Nevada, Idaho and Colorado from approximately 600 to 1300 AD. These people lived in areas close to water sources that had been previously occupied by the Desert Archaic people, and may have had some relationship with them. However, their use of new technologies define them as a distinct people. Fremont technologies include:

use of the bow and arrow while hunting,

building pithouse shelters,

growing maize and probably beans and squash,

building above ground granaries of adobe or stone,

creating and decorating low-fired pottery ware,

producing art, including jewelry and rock art such as petroglyphs and pictographs.

The ancient Puebloan culture, also known as the Anasazi, occupied territory adjacent to the Fremont. The ancestral Puebloan culture centered on the present-day Four Corners area of the Southwest United States, including the San Juan River region of Utah. Archaeologists debate when this distinct culture emerged, but cultural development seems to date from about the common era, about 500 years before the Fremont appeared. It is generally accepted that the cultural peak of these people was around the 1200 CE. Ancient Puebloan culture is known for well constructed pithouses and more elaborate adobe and masonry dwellings. They were excellent craftsmen, producing turquoise jewelry and fine pottery. The Puebloan culture was based on agriculture, and the people created and cultivated fields of maize, beans, and squash and domesticated turkeys. They designed and produced elaborate field terracing and irrigation systems. They also built structures, some known as kivas, apparently designed solely for cultural and religious rituals.

These two later cultures were roughly contemporaneous, and appear to have established trading relationships. They also shared enough cultural traits that archaeologists believe the cultures may have common roots in the early American Southwest. However, each remained culturally distinct throughout most of their existence. These two well established cultures appear to have been severely impacted by climatic change and perhaps by the incursion of new people in about 1200 CE. Over the next two centuries, the Fremont and ancient Pueblo people may have moved into the American southwest, finding new homes and farmlands in the river drainages of Arizona, New Mexico and northern Mexico.

In about 1200, Shoshonean speaking peoples entered Utah territory from the west. They may have originated in southern California and moved into the desert environment due to population pressure along the coast. They were an upland people with a hunting and gathering lifestyle utilizing roots and seeds, including the pinyon nut. They were also skillful fishermen, created pottery and raised some crops. When they first arrived in Utah, they lived as small family groups with little tribal organization. Four main Shoshonean peoples inhabited Utah country. The Shoshone in the north and northeast, the Gosiutes in the northwest, the Utes in the central and eastern parts of the region and the Southern Paiutes in the southwest. Initially, there seems to have been very little conflict between these groups.

In the early 16th century, the San Juan River basin in Utah's southeast also saw a new people, the Díne or Navajo, part of a greater group of plains Athabaskan speakers moved into the Southwest from the Great Plains. In addition to the Navajo, this language group contained people that were later known as Apaches, including the Lipan, Jicarilla, and Mescalero Apaches.

Athabaskans were a hunting people who initially followed the bison, and were identified in 16th-century Spanish accounts as "dog nomads". The Athabaskans expanded their range throughout the 17th century, occupying areas the Pueblo peoples had abandoned during prior centuries. The Spanish first specifically mention the "Apachu de Nabajo" (Navaho) in the 1620s, referring to the people in the Chama valley region east of the San Juan River, and north west of Santa Fe. By the 1640s, the term Navaho was applied to these same people. Although the Navajo newcomers established a generally peaceful trading and cultural exchange with the some modern Pueblo peoples to the south, they experienced intermittent warfare with the Shoshonean peoples, particularly the Utes in eastern Utah and western Colorado.

At the time of European expansion, beginning with Spanish explorers traveling from Mexico, five distinct native peoples occupied territory within the Utah area: the Northern Shoshone, the Goshute, the Ute, the Paiute and the Navajo.

The Spanish explorer Francisco Vázquez de Coronado may have crossed into what is now southern Utah in 1540, when he was seeking the legendary Cíbola.

A group led by two Spanish Catholic priests—sometimes called the Domínguez–Escalante expedition—left Santa Fe in 1776, hoping to find a route to the California coast. The expedition traveled as far north as Utah Lake and encountered the native residents. All of what is now Utah was claimed by the Spanish Empire from the 1500s to 1821 as part of New Spain (later as the province Alta California); and subsequently claimed by Mexico from 1821 to 1848. However, Spain and Mexico had little permanent presence in, or control of, the region.

Fur trappers (also known as mountain men) including Jim Bridger, explored some regions of Utah in the early 19th century. The city of Provo was named for one such man, Étienne Provost, who visited the area in 1825. The city of Ogden, Utah is named for a brigade leader of the Hudson's Bay Company, Peter Skene Ogden who trapped in the Weber Valley. In 1846, a year before the arrival of members from the Church of Jesus Christ of latter-day Saints, the ill-fated Donner Party crossed through the Salt Lake valley late in the season, deciding not to stay the winter there but to continue forward to California, and beyond.

Members of the Church of Jesus Christ of Latter-day Saints, commonly known as Mormon pioneers, first came to the Salt Lake Valley on July 24, 1847. At the time, the U.S. had already captured the Mexican territories of Alta California and New Mexico in the Mexican–American War and planned to keep them, but those territories, including the future state of Utah, officially became United States territory upon the signing of the Treaty of Guadalupe Hidalgo, February 2, 1848. The treaty was ratified by the United States Senate on March 10, 1848.

Upon arrival in the Salt Lake Valley, the Mormon pioneers found no permanent settlement of Indians. Other areas along the Wasatch Range were occupied at the time of settlement by the Northwestern Shoshone and adjacent areas by other bands of Shoshone such as the Gosiute. The Northwestern Shoshone lived in the valleys on the eastern shore of Great Salt Lake and in adjacent mountain valleys. Some years after arriving in the Salt Lake Valley Mormons, who went on to colonize many other areas of what is now Utah, were petitioned by Indians for recompense for land taken. The response of Heber C. Kimball, first counselor to Brigham Young, was that the land belonged to "our Father in Heaven and we expect to plow and plant it." A 1945 Supreme Court decision found that the land had been treated by the United States as public domain; no aboriginal title by the Northwestern Shoshone had been recognized by the United States or extinguished by treaty with the United States.

Upon arriving in the Salt Lake Valley, the Mormons had to make a place to live. They created irrigation systems, laid out farms, built houses, churches, and schools. Access to water was crucially important. Almost immediately, Brigham Young set out to identify and claim additional community sites. While it was difficult to find large areas in the Great Basin where water sources were dependable and growing seasons long enough to raise vitally important subsistence crops, satellite communities began to be formed.

Shortly after the first company arrived in the Salt Lake Valley in 1847, the community of Bountiful was settled to the north. In 1848, settlers moved into lands purchased from trapper Miles Goodyear in present-day Ogden. In 1849, Tooele and Provo were founded. Also that year, at the invitation of Ute chief Wakara, settlers moved into the Sanpete Valley in central Utah to establish the community of Manti. Fillmore, Utah, intended to be the capital of the new territory, was established in 1851. In 1855, missionary efforts aimed at western native cultures led to outposts in Fort Lemhi, Idaho, Las Vegas, Nevada and Elk Mountain in east-central Utah.

The experiences of returning members of the Mormon Battalion were also important in establishing new communities. On their journey west, the Mormon soldiers had identified dependable rivers and fertile river valleys in Colorado, Arizona and southern California. In addition, as the men traveled to rejoin their families in the Salt Lake Valley, they moved through southern Nevada and the eastern segments of southern Utah. Jefferson Hunt, a senior Mormon officer of the Battalion, actively searched for settlement sites, minerals, and other resources. His report encouraged 1851 settlement efforts in Iron County, near present-day Cedar City. These southern explorations eventually led to Mormon settlements in St. George, Utah, Las Vegas and San Bernardino, California, as well as communities in southern Arizona.

Prior to establishment of the Oregon and California trails and Mormon settlement, Indians native to the Salt Lake Valley and adjacent areas lived by hunting buffalo and other game, but also gathered grass seed from the bountiful grass of the area as well as roots such as those of the Indian Camas. By the time of settlement, indeed before 1840, the buffalo were gone from the valley, but hunting by settlers and grazing of cattle severely impacted the Indians in the area, and as settlement expanded into nearby river valleys and oases, indigenous tribes experienced increasing difficulty in gathering sufficient food. Brigham Young's counsel was to feed the hungry tribes, and that was done, but it was often not enough. These tensions formed the background to the Bear River massacre committed by California Militia stationed in Salt Lake City during the Civil War. The site of the massacre is just inside Preston, Idaho, but was generally thought to be within Utah at the time.

Statehood was petitioned for in 1849-50 using the name Deseret. The proposed State of Deseret would have been quite large, encompassing all of what is now Utah, and portions of Colorado, Idaho, Nevada, Wyoming, Arizona, Oregon, New Mexico and California. The name of Deseret was favored by the LDS leader Brigham Young as a symbol of industry and was derived from a reference in the Book of Mormon. The petition was rejected by Congress and Utah did not become a state until 1896, following the Utah Constitutional Convention of 1895.

In 1850, the Utah Territory was created with the Compromise of 1850, and Fillmore (named after President Fillmore) was designated the capital. In 1856, Salt Lake City replaced Fillmore as the territorial capital.

The first group of pioneers brought African slaves with them, making Utah the only place in the western United States to have African slavery. Three slaves, Green Flake, Hark Lay, and Oscar Crosby, came west with this first group in 1847. The settlers also began to purchase Indian slaves in the well-established Indian slave trade, as well as enslaving Indian prisoners of war. In 1850, 26 slaves were counted in Salt Lake County. Slavery didn't become officially recognized until 1852, when the Act in Relation to Service and the Act for the relief of Indian Slaves and Prisoners were passed. Slavery was repealed on June 19, 1862, when Congress prohibited slavery in all US territories.

Disputes between the Mormon inhabitants and the federal government intensified after the Church of Jesus Christ of Latter-day Saints' practice of polygamy became known. The polygamous practices of the Mormons, which were made public in 1854, would be one of the major reasons Utah was denied statehood until almost 50 years after the Mormons had entered the area.

After news of their polygamous practices spread, the members of the LDS Church were quickly viewed by some as un-American and rebellious. In 1857, after news of a possible rebellion spread, President James Buchanan sent troops on the Utah expedition to quell the growing unrest and to replace Brigham Young as territorial governor with Alfred Cumming. The expedition was also known as the Utah War.

As fear of invasion grew, Mormon settlers had convinced some Paiute Indians to aid in a Mormon-led attack on 120 immigrants from Arkansas under the guise of Indian aggression. The murder of these settlers became known as the Mountain Meadows massacre. The Mormon leadership had adopted a defensive posture that led to a ban on the selling of grain to outsiders in preparation for an impending war. This chafed pioneers traveling through the region, who were unable to purchase badly needed supplies. A disagreement between some of the Arkansas pioneers and the Mormons in Cedar City led to the secret planning of the massacre by a few Mormon leaders in the area. Some scholars debate the involvement of Brigham Young. Only one man, John D. Lee, was ever convicted of the murders, and he was executed at the massacre site.

Express riders had brought the news 1,000 miles from the Missouri River settlements to Salt Lake City within about two weeks of the army's beginning to march west. Fearing the worst as 2,500 troops (roughly 1/3rd of the army then) led by General Albert Sidney Johnston started west, Brigham Young ordered all residents of Salt Lake City and neighboring communities to prepare their homes for burning and evacuate southward to Utah Valley and southern Utah. Young also sent out a few units of the Nauvoo Legion (numbering roughly 8,000–10,000), to delay the army's advance. The majority he sent into the mountains to prepare defenses or south to prepare for a scorched earth retreat. Although some army wagon supply trains were captured and burned and herds of army horses and cattle run off no serious fighting occurred. Starting late and short on supplies, the United States Army camped during the bitter winter of 1857–58 near a burned out Fort Bridger in Wyoming. Through the negotiations between emissary Thomas L. Kane, Young, Cumming and Johnston, control of Utah territory was peacefully transferred to Cumming, who entered an eerily vacant Salt Lake City in the spring of 1858. By agreement with Young, Johnston established the army at Fort Floyd 40 miles away from Salt Lake City, to the southwest.

Salt Lake City was the last link of the First Transcontinental Telegraph, between Carson City, Nevada and Omaha, Nebraska completed in October 1861. Brigham Young, who had helped expedite construction, was among the first to send a message, along with Abraham Lincoln and other officials. Soon after the telegraph line was completed, the Deseret Telegraph Company built the Deseret line connecting the settlements in the territory with Salt Lake City and, by extension, the rest of the United States.

Because of the American Civil War, federal troops were pulled out of Utah Territory (and their fort auctioned off), leaving the territorial government in federal hands without army backing until General Patrick E. Connor arrived with the 3rd Regiment of California Volunteers in 1862. While in Utah, Connor and his troops soon became discontent with this assignment wanting to head to Virginia where the "real" fighting and glory was occurring. Connor established Fort Douglas just three miles (5 km) east of Salt Lake City and encouraged his bored and often idle soldiers to go out and explore for mineral deposits to bring more non-Mormons into the state. Minerals were discovered in Tooele County, and some miners began to come to the territory. Conner also solved the Shoshone Indian problem in Cache Valley Utah by luring the Shoshone into a midwinter confrontation on January 29, 1863. The armed conflict quickly turned into a rout, discipline among the soldiers broke down, and the Battle of Bear River is today usually referred to by historians as the Bear River Massacre. Between 200 and 400 Shoshone men, women and children were killed, as were 27 soldiers, with over 50 more soldiers wounded or suffering from frostbite.

Beginning in 1865, Utah's Black Hawk War developed into the deadliest conflict in the territory's history. Chief Antonga Black Hawk died in 1870, but fights continued to break out until additional federal troops were sent in to suppress the Ghost Dance of 1872. The war is unique among Indian Wars because it was a three-way conflict, with mounted Timpanogos Utes led by Antonga Black Hawk fighting federal and Utah local militia.

On May 10, 1869, the First transcontinental railroad was completed at Promontory Summit, north of the Great Salt Lake. The railroad brought increasing numbers of people into the state, and several influential businessmen made fortunes in the territory.

Main article: Latter Day Saint polygamy in the late-19th century

During the 1870s and 1880s, federal laws were passed and federal marshals assigned to enforce the laws against polygamy. In the 1890 Manifesto, the LDS Church leadership dropped its approval of polygamy citing divine revelation. When Utah applied for statehood again in 1895, it was accepted. Statehood was officially granted on January 4, 1896.

The Mormon issue made the situation for women the topic of nationwide controversy. In 1870 the Utah Territory, controlled by Mormons, gave women the right to vote. However, in 1887, Congress disenfranchised Utah women with the Edmunds–Tucker Act. In 1867–96, eastern activists promoted women's suffrage in Utah as an experiment, and as a way to eliminate polygamy. They were Presbyterians and other Protestants convinced that Mormonism was a non-Christian cult that grossly mistreated women. The Mormons promoted woman suffrage to counter the negative image of downtrodden Mormon women. With the 1890 Manifesto clearing the way for statehood, in 1895 Utah adopted a constitution restoring the right of women's suffrage. Congress admitted Utah as a state with that constitution in 1896.

Though less numerous than other intermountain states at the time, several lynching murders for alleged misdeeds occurred in Utah territory at the hand of vigilantes. Those documented include the following, with their ethnicity or national origin noted in parentheses if it was provided in the source:

William Torrington in Carson City (then a part of Utah territory), 1859

Thomas Coleman (Black man) in Salt Lake City, 1866

3 unidentified men at Wahsatch, winter of 1868

A Black man in Uintah, 1869

Charles A. Benson in Logan, 1873

Ah Sing (Chinese man) in Corinne, 1874

Thomas Forrest in St. George, 1880

William Harvey (Black man) in Salt Lake City, 1883

John Murphy in Park City, 1883

George Segal (Japanese man) in Ogden, 1884

Joseph Fisher in Eureka, 1886

Robert Marshall (Black man) in Castle Gate, 1925

Other lynchings in Utah territory include multiple instances of mass murder of Native American children, women, and men by White settlers including the Battle Creek massacre (1849), Provo River Massacre (1850), Nephi massacre (1853), and Circleville Massacre (1866).

Beginning in the early 20th century, with the establishment of such national parks as Bryce Canyon National Park and Zion National Park, Utah began to become known for its natural beauty. Southern Utah became a popular filming spot for arid, rugged scenes, and such natural landmarks as Delicate Arch and "the Mittens" of Monument Valley are instantly recognizable to most national residents. During the 1950s, 1960s, and 1970s, with the construction of the Interstate highway system, accessibility to the southern scenic areas was made easier.

Beginning in 1939, with the establishment of Alta Ski Area, Utah has become world-renowned for its skiing. The dry, powdery snow of the Wasatch Range is considered some of the best skiing in the world. Salt Lake City won the bid for the 2002 Winter Olympics in 1995, and this has served as a great boost to the economy. The ski resorts have increased in popularity, and many of the Olympic venues scattered across the Wasatch Front continue to be used for sporting events. This also spurred the development of the light-rail system in the Salt Lake Valley, known as TRAX, and the re-construction of the freeway system around the city.

During the late 20th century, the state grew quickly. In the 1970s, growth was phenomenal in the suburbs. Sandy was one of the fastest-growing cities in the country at that time, and West Valley City is the state's 2nd most populous city. Today, many areas of Utah are seeing phenomenal growth. Northern Davis, southern and western Salt Lake, Summit, eastern Tooele, Utah, Wasatch, and Washington counties are all growing very quickly. Transportation and urbanization are major issues in politics as development consumes agricultural land and wilderness areas.

In 2012, the State of Utah passed the Utah Transfer of Public Lands Act in an attempt to gain control over a substantial portion of federal land in the state from the federal government, based on language in the Utah Enabling Act of 1894. The State does not intend to use force or assert control by limiting access in an attempt to control the disputed lands, but does intend to use a multi-step process of education, negotiation, legislation, and if necessary, litigation as part of its multi-year effort to gain state or private control over the lands after 2014.

Utah families, like most Americans everywhere, did their utmost to assist in the war effort. Tires, meat, butter, sugar, fats, oils, coffee, shoes, boots, gasoline, canned fruits, vegetables, and soups were rationed on a national basis. The school day was shortened and bus routes were reduced to limit the number of resources used stateside and increase what could be sent to soldiers.

Geneva Steel was built to increase the steel production for America during World War II. President Franklin D. Roosevelt had proposed opening a steel mill in Utah in 1936, but the idea was shelved after a couple of months. After the attack on Pearl Harbor, the United States entered the war and the steel plant was put into progress. In April 1944, Geneva shipped its first order, which consisted of over 600 tons of steel plate. Geneva Steel also brought thousands of job opportunities to Utah. The positions were hard to fill as many of Utah's men were overseas fighting. Women began working, filling 25 percent of the jobs.

As a result of Utah's and Geneva Steels contribution during the war, several Liberty Ships were named in honor of Utah including the USS Joseph Smith, USS Brigham Young, USS Provo, and the USS Peter Skene Ogden.

One of the sectors of the beachhead of Normandy Landings was codenamed Utah Beach, and the amphibious landings at the beach were undertaken by United States Army troops.

It is estimated that 1,450 soldiers from Utah were killed in the war.