River Basins We Monitor
Carson River Basin
Site Update: 02.27.2023 by USGS and USDA
The Carson River Basin (hydrographic region 8) is about 3,900 square miles and extends about 150 miles from eastern California to pershing County, Nevada.
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Truckee River Basin
Date of Data: 03.04.2023 by USGS and USDA
The Truckee River flows for 120 miles from the outlet of Lake Tahoe in California, into Nevada, through the city of Reno, until it terminates at Pyramid Lake and is the only source of surface-water outflow from Lake Tahoe.
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Walker River Basin
Date of Data: 02.27.2023 by USGS and USDA
The Walker River begins in the Sierra Nevada as the East Walker River and the West Walker River. In Mason Valley, just south of Yerington, Nev., the rivers converge to create the the Walker River. The Walker River terminates in Walker Lake.
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Humboldt River Basin
Date of Data: 02.27.2023 by USGS and USDA
The Humboldt River Basin is the largest river basin that is entirely within the State of Nevada covering more than 16,000 square miles.
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