Mill Castle Trailhead

About

The Mill Castle Trailhead serves as the starting point for Mill Castle Trail #450 in Gunnison National Forest, located at the end of Mill Creek Road (FSR #727) near Gunnison, Colorado. The trail extends into the West Elk Wilderness, with the first mile outside the wilderness boundary. It is a popular route for hiking and backpacking, typically accessed between June and November. The trail is generally considered challenging, with total lengths ranging from 9.8 miles to over 25 miles depending on the specific route taken, including loops with the Lowline Trail. Elevation gain is significant, often cited around 7,000 feet, with trail elevations ranging from approximately 9,000 to 12,463 feet. The US Forest Service notes that the Mill Creek crossing can be treacherous. Parking is available at the trailhead, and dogs are permitted on a leash. Restrooms are listed as available at the trailhead in some sources, though this may vary.