Springs in Black Canyon of the Colorado River, directly south of Hoover Dam in the Lake Mead National Recreation Area, Nevada and Arizona, are important hydrologic features that support a unique riparian ecosystem including habitat for endangered speci
Moran, Michael J. mjmoran@usgs.gov,Wilson, Jon W. jwilson@usgs.gov,Beard, L. Sue sbeard@usgs.gov. Hydrogeology and sources of water to select springs in Black Canyon, south of Hoover Dam, Lake Mead National Recreation Area, Nevada and Arizona. 2015-01-01.