Lookout Mountain and its ten-mile dirt loop sits just to the east of Highway 395 between the towns Mammoth Lakes and June Lake. Accessed by road 3S06 turnoff, about six miles north of Mammoth Lakes, it is popular with OHV/ATV riders who enjoy 360-degree views of the Long Valley Caldera, Obsidian Dome and Mono Craters. Link up with the large network of roads and trails that spread throughout this area. Open to snowmobiles in winter.