Bison Peak is the highest summit of the Tarryall Mountains range in the Rocky Mountains of North America. Officially designated Bison Mountain, the prominent 12,432-foot peak is located in the Lost Creek Wilderness of Pike National Forest, 8.1 miles north by west of the community of Tarryall in Park County, Colorado, United States. The summit is the highest p…Bison Peak is the highest summit of the Tarryall Mountains range in the Rocky Mountains of North America. Officially designated Bison Mountain, the prominent 12,432-foot peak is located in the Lost Creek Wilderness of Pike National Forest, 8.1 miles north by west of the community of Tarryall in Park County, Colorado, United States. The summit is the highest point in the Lost Creek Wilderness.