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060729_6672

US Geological Survey (USGS) research landscape ecologist Christian Torgersen takes a break from diving the river to count fish and map the river bed during a field expedition to survey Big Creek, a tributary of the Salmon River, in the Frank Church - River of No Return Wilderness, Idaho.

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Filename: 060729_6672.JPG
Copyright: Ethan Welty
Image Size: 600x900 / 430.2KB; www.weltyphotography.com; North America United States Idaho Frank Church Wilderness River of No Return Wilderness
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US Geological Survey (USGS) research landscape ecologist Christian Torgersen takes a break from diving the river to count fish and map the river bed during a field expedition to survey Big Creek, a tributary of the Salmon River, in the Frank Church - River of No Return Wilderness, Idaho.