Pyramid Lake is an endorheic salt lake, approximately 188 sq mi (490 km2), in the Great Basin in the northwestern part of the U.S. state of Nevada. One of the largest lakes in the United States, it is located in southern Washoe County 40 mi (64 km) northeast of Reno, along the east side of the Virginia Mountains with a surface elevation of about 3,789 ft (1,155 m).