American River
The North Fork is the longest tributary of the American River, at . It begins at an elevation of about near Lake Tahoe in Placer County at Mountain Meadow Lake, just northeast of Granite Chief and immediately due west of Squaw Valley Ski Resort. It flows westward through remote wilderness areas.
Fort Randall Dam
Fort Randall Dam is a long earthen dam which spans the Missouri River and impounds Lake Francis Case, the 11th largest reservoir in the U.S. The dam joins Gregory and Charles Mix County, South Dakota a distance of 880 river miles (1,416 km) upstream of St. Louis, Missouri, where the river joins the Mississippi River. The dam and Hydroelectric power plant were constructed by and are currently operated by the U.S. Army Corps of Engineers.