USGS - NOROCK Research team in the Northern Cascades.
USGS - NOROCK Research team in the Northern Cascades.USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.
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USGS - NOROCK Research team in the Northern Cascades.
USGS - NOROCK Research team in the Northern Cascades.
USGS - NOROCK Research team in the Northern Cascades.USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.
American bullfrog close-up
An American bullfrom is native to most eastern states, but considered invasive in the moutain west.
An American bullfrom is native to most eastern states, but considered invasive in the moutain west.
Fish Swimming on Gravel Bed
Fish swim along the gravel bed bottom of the North Fork of the Flathead River.
Fish swim along the gravel bed bottom of the North Fork of the Flathead River.
Cattle Grazing at Sunset in Montana
Cattle graze on a ranch in western Montana.
Elk Feedgrounds
Elk grazing at a feedground in Wyoming.
Elk grazing at a feedground in Wyoming.
Grizzly Bear and Cub in Yellowstone National Park
Female grizzly bear with her young cub near the Gibbon River in Yellowstone National Park. Photo was taken in April 2016 by USGS scientist Frank van Manen.
Female grizzly bear with her young cub near the Gibbon River in Yellowstone National Park. Photo was taken in April 2016 by USGS scientist Frank van Manen.
Piegan Glacier 1938
Piegan Glacier 1938.
Shepard Glacier 1911.
Shepard Glacier 1911.
Sperry Glacier 1907
Sperry Glacier 1907.
Sperry Glacier Mid View 2008 in color.
Sperry Glacier Mid View 2008 in color.
Sperry Glacier Mid View 2008 in black and white.
Sperry Glacier Mid View 2008 in black and white.
Swiftcurrent Glacier from Trail circa 1900.
Swiftcurrent Glacier from Trail circa 1900.
Swiftcurrent Glacier from Trail 2013 in color.
Swiftcurrent Glacier from Trail 2013 in color.
Swiftcurrent Glacier from Lookout circa 1930
Swiftcurrent Glacier from Lookout circa 1930.
Hidden Lake (b) 2009.
Hidden Lake (b) 2009.
American pika eating plants.
American pika eating plants.
Piegan Glacier 1998
Piegan Glacier 1998.
Shepard Glacier 1913
Shepard Glacier 1913.
Sperry Glacier Mid View c1930.
Sperry Glacier Mid View circa 1930. Images that were acquired from the University of Montana may be protected by copyright.
Sperry Glacier Mid View circa 1930. Images that were acquired from the University of Montana may be protected by copyright.
Swiftcurrent Glacier from Trail 1998 in black and white.
Swiftcurrent Glacier from Trail 1998 in black and white.Swiftcurrent Glacier from Trail 1998 in black and white.
Swiftcurrent Glacier from Trail 1998 in black and white.
Swiftcurrent Glacier from Trail 1998 in black and white.Swiftcurrent Glacier from Trail 1998 in black and white.
Swiftcurrent Glacier from Lookout 2015.
Swiftcurrent Glacier from Lookout 2015.