Lost Creek Wilderness

The Lost Creek Wilderness is a 119790 acre wilderness area located in central Colorado in Jefferson and Park counties, south of the town of Bailey. The area is situated entirely within the boundaries of the Pike National Forest.

The Lost Creek Scenic Area is a 16,798-acre National Natural Landmark within the Wilderness.

Wilderness
The area is named for Lost Creek, a perennial stream that disappears and reappears before finally joining Goose Creek, which empties into the South Platte River at Cheesman Reservoir just east of the Wilderness area. The entire water system of the area forms a watershed for the Platte River Basin. The area is notable for its many rock formations, natural arches, and rounded granite domes and knobs. These are contained in two ranges of low alpine foothills of the Rocky Mountains: the Kenosha Mountains and the Tarryall Mountains. 12431 ft Bison Peak is the highest peak in the wilderness.

Because of its proximity to Denver, the area is quite popular for outdoor recreation in both the summer and winter months. Common activities in the area include hiking, backpacking, and rock climbing, as well as cross-country skiing, snowshoeing, and winter camping. There are 130 mi of trails in the wilderness, including a section of the Colorado Trail that crosses Lost Creek then parallels the northeast boundary toward Kenosha Pass. Lost Park, as the area is sometimes called, was one of the last refuges of the American bison in the United States.

Scenic area
The Lost Creek Scenic Area is a 16798 acre site within the Lost Creek Wilderness that was created in 1963 under the 1939 "U-Regulations", which was the precursor of the Wilderness Act. The area was designated a National Natural Landmark in 1966. It is located in the Pike National Forest and is in both Park and Jefferson counties. Rock formations with pinnacles and spires are located in narrow gorges and on ridges. An underground stream "disappears and reappears" nine times or more at the site.

In popular culture
Episode 2 of Season 1 of the television series Supernatural takes place within the Lost Creek Wilderness area, specifically at the fictitious Blackwater Ridge.