Stillwater Pass

Managing agency

White River NF — Aspen-Sopris RD

Stillwater Pass is a 39.4-mile out-and-back trail located in Colorado near the White River National Forest, managed by the Aspen-Sopris Ranger District. With 1,596 feet of elevation gain spread across the entire route, this trail offers a moderate climbing experience suitable for hikers seeking distance over steep grades. The out-and-back format means hikers will cover approximately 19.7 miles to reach Stillwater Pass before returning via the same route. This structure allows flexibility for turnaround decisions based on fitness level and available time. The trail traverses White River National Forest terrain, providing access to high country scenery characteristic of the Colorado Rockies. The relatively gradual elevation gain distributed across nearly 40 miles makes this suitable for experienced hikers comfortable with longer distances. Best approached as a multi-hour day hike or backpacking trip, Stillwater Pass offers those seeking solitude and sustained backcountry hiking within the White River National Forest system.