Mammoth Mountain Ski Area is a large ski resort located in Eastern California, along the east side of the Sierra Nevada mountain range in the Inyo National Forest. Mammoth has more than 3,500 acres (1,400 ha) of skiable terrain, serviced by 28 lifts, including 2 gondolas. The area has 3,100 ft (940 m) of vertical, rising to an elevation of 11,053 ft (3,369 m), and enjoys a long ski season.