The Powderhorn Wilderness is a 62,050-acre wilderness area in Hinsdale and Gunnison counties, Colorado, United States, located 5 miles northeast of Lake City. Most of the northern part of the wilderness area, 48,115 acres, about 77.5%, is located on Bureau of Land Management land and its southern portion, 13,935 acres, about 22.5%, is located within the …The Powderhorn Wilderness is a 62,050-acre wilderness area in Hinsdale and Gunnison counties, Colorado, United States, located 5 miles northeast of Lake City. Most of the northern part of the wilderness area, 48,115 acres, about 77.5%, is located on Bureau of Land Management land and its southern portion, 13,935 acres, about 22.5%, is located within the Gunnison National Forest. Elevations in the wilderness range from 8,500 feet at the West Fork Powderhorn Creek to 12,661 feet at the summit of Calf Creek Plateau.