Lone Peak, a mountain peak southeast of Salt Lake City, Utah, is the center of the Lone Peak Wilderness Area, which was established in 1978. At 11,253 feet (3,430 m) elevation, it is one of the taller peaks in the Wasatch Range along the Wasatch Front and tends to be a favorite hike. Lone Peak consists almost entirely of quartz monzonite (a granitoid, or granite-like) rock of the 30.5 million year old Little Cottonwood Stock. Quartzite and limestone are also found in distal locations on the mountain.