Walker Lake, Nevada (NASA, International Space Station, 07/29/12)

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    Walker Lake, Nevada is featured in this image photographed by an Expedition 32 crew member on the International Space Station. According to scientists, the Pleistocene landscape of western Nevada approximately 15,000 years ago was one of narrow mountain ranges and numerous interconnected lakes that together formed the extensive glacial Lake Lahontan. Scientists believe drying and warming of the regional climate since the last Ice Age led to the disappearance of the glaciers feeding meltwater to Lake Lahontan, and eventual disappearance of the lake itself. Today, few remnants of Lahontan remain; most of its arms have become dry enclosed basins known as playas. This photograph highlights Walker Lake, one of only two remnant lakes that contain water throughout the year (Pyramid Lake in Nevada is the other). The lake is located in an enclosed basin bounded by the Wassuk Range to the west and the Gillis Range to the east. It is fed by the Walker River flowing from the north. The current dimensions of the lake are approximately 21 kilometers north-south by 9 kilometers east-west. Shoreline deposits at higher elevations than the current lake level form concentric bands that are just visible in the image (bottom center) -- these record varying lake levels in the geologic past. The nearest town is Hawthorne, Nevada to the southeast. To the southwest the highest peak of the Wassuk Range, Mount Grant (elevation 3,496 meters above sea level), dominates the skyline. Green agricultural fields, primarily alfalfa, located to the west of the Wassuk Range (lower right) provide a striking contrast to the surrounding Great Basin desert. These fields are irrigated using water from the nearby East Fork of the Walker River (right, just visible alongside the fields).

    Image credit: NASA/JSC

    Original image:
    spaceflight.nasa.gov/gallery/images/station/crew-32/html/...

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    www.nasa.gov/mission_pages/station/research/index.html

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    Cosmikate, `miRЯim ☮, and 26 other people added this photo to their favorites.

    1. `miRЯim ☮ 30 months ago | reply

      Great stuff TY!!
      NB: Area 51 just South of here.. :)

    2. sixkings55 30 months ago | reply

      amazing detail! great work on the geology, always great stuff.

    3. Massimo Todisco 30 months ago | reply

      Amazing....never seen Nevada from this point :)

      Thanks for sharing

    4. pauline.kehoe 30 months ago | reply

      Wonderful detailed capture.

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