Mount Tinemaha is a 12,520-foot-elevation (3,820-meter) mountain summit located east of the crest of the Sierra Nevada mountain range, in Inyo County of northern California. It is situated on the eastern boundary of the John Muir Wilderness, on land managed by Inyo National Forest. It is 1.3 mile southeast of Tinemaha Lake, and 1.8 mile northeast of parent Split Mountain. Topographic relief is significant as the east aspect rises 5,900 feet above Owens Valley in two miles.