Table Mountain is a narrow, 18 mi -long, sinuous, flat-topped ridge separated by erosional saddles into a series of mesas that extend from Lake Tulloch to just west of Columbia, California in Tuolumne County, California. It is just over 1,100 ft in elevation at its southern end and just over 2,000 ft in elevation at its northern end. Its flat top is part of a sta…Table Mountain is a narrow, 18 mi -long, sinuous, flat-topped ridge separated by erosional saddles into a series of mesas that extend from Lake Tulloch to just west of Columbia, California in Tuolumne County, California. It is just over 1,100 ft in elevation at its southern end and just over 2,000 ft in elevation at its northern end. Its flat top is part of a stack of multiple 80 mi -long lava flows that have been eroded to form a series of mesas that extend from Knights Ferry to Sonora, California. Its crest varies in width from a narrow ridge to over 1,100 ft wide. It parallels the adjacent Stanislaus River.