Morning glory, Yellowstone National Park

Morning glory pool is considered the most beautiful pool and a must-see of Yellowstone National Park. Its colors are because of the existence of heat-thriving bacteria making a stunning display of hues. The delicate blue water is created by thermophilic bacteria, which thrive in the pool’s searing heat.


Over the years people threw coins, bottles and trash in the pool, reducing its flow and causing the red and orange bacteria to creep in from its edge, replacing the blue bacteria that thrive in the hotter water at the center of the pool.




September 7, 2010, Upper Geyser Basin, old faithful area, Yellowstone National Park, Wyoming, geographic location.

  • Gary Zhong 5y

  • Alejo 5y

    What an incredible colors! Yellowstone looks to be a beautiful place.
  • neahz 5y

    this is beautiful!!! and i loved reading about it too.. looks like a must visit place
  • Char-la-la 5y

  • Jasjit Pabla 4y

  • sleep 4y

    natures amazing
  • Lisa Hazlegreaves 4y

    Wow this is amazing, as are the rest of your pics...I found this pic in particular on another website...all atributed to you I may add, but there was no description of the picture so it's taken me five minutes of bumbling around this internet thing to find you and your photostream..but well worth it for your brilliant photogaphy and excellent descriptions. Thank you for the time you have taken to both capture these images and share.

  • visiblejoy 4y

    Stunning capture of the awesomeness of nature! Great colors and angle! Thanks, Arun!
  • visiblejoy 4y

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  • ckhoffmanf 4y

    just wait till the supervolcano goes off :-o
  • ˘˛˘ LynnChickZzZ ◦'⌣'◦ 4y

  • Tahnee Osler 4y

    It's things like this that make me want to travel the world even more..I mean to even take a picture of something so beautiful would be an amazing thing, let alone just looking at it..being there..urgh, the world is so beautiful.
  • Artistic A!!ure 4y

    Wow! This is so stunning!! Love the incredible colours! Amazing shot, Arun!
  • Ting Chen Eva Chang 4y

    Wow! I just can not believe my eyes..! Superb!!
  • Daiva 4y

  • Natasha Cronsell 4y

    This is incredible - Yellowstone is such a wondrous beauty. I am curious what kind of editing you did on this, though. I've just never seen Morning Glory so shiny.
  • Gianluca Domenico Scapolo 3y

  • Georgiy25 3y

    Morning Glory Pool Location
  • Patii 2y

    fabulous place and colors
  • Jim Griffin 1y

    Wonderful photo.
304 faves
Taken on September 7, 2010
  • ƒ/22.0
  • 18.0 mm
  • 1/30
  • 250
  • Flash (off, did not fire)
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