Lake Tahoe is a freshwater lake in the Sierra Nevada of the Western United States, straddling the border between California and Nevada. Lying at 6,225 ft above sea level, Lake Tahoe is the largest alpine lake in North America, and at 122,160,280 acre⋅ft it trails only the five Great Lakes as the largest by volume in the United States. Its depth is 1,645 ft, making it the second deepest in the United States after Crater Lake in Oregon.