Mount Tinemaha is a 12,520-foot peak in the eastern Sierra Nevada of northern California, on the boundary of the John Muir Wilderness in Inyo National Forest. Rising about 5,900 feet above Owens Valley in only two miles, it stands out for its dramatic relief and alpine setting. The mountain was named for the legendary Paiute chief Tinemaha, a name already used by early prospectors and cattlemen before official adoption by the U.S. Board on Geographic Names in 1937. Chester Versteeg submitted the name for recognition and made the first recorded ascent on July 1, 1937. Its runoff feeds local creeks and ultimately Tinemaha Reservoir.