Pyramid Lake, 188 sq mi (487 sq km), W Nev. The lake, a remnant of ancient Lake Lahontan, receives the Truckee River. Visited (1844) by U.S. explorer John Frmont, the lake was named for its large pyramidal rocks. It is located in the Pyramid Lake (Native American) reservation. In the lake is Anaho Island, a national wildlife refuge.
The Columbia Electronic Encyclopedia, 6th ed. Copyright 2012, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: U.S. Physical Geography