Irwin Lake

Managing agency

Routt NF — Hahns Peak/Bears Ears RD

Irwin Lake is a 6.1-mile out-and-back trail located in Colorado, offering a moderate day hike with 406 feet of elevation gain. The trail provides access to an alpine lake while maintaining a relatively gentle grade suitable for hikers of varied abilities. The route follows a straightforward path to the lake and back, making it ideal for those seeking a full-day adventure without technical difficulty. The modest elevation gain is distributed across the hike, allowing for a sustainable pace and ample time to enjoy the surrounding landscape. This trail is managed by the designated agency and falls within a protected wilderness area, ensuring a backcountry experience. The out-and-back format allows hikers to control their distance and turn around at any point, making it flexible for different fitness levels and schedules. Irwin Lake is best visited during the warmer months when snow clears from higher elevations. The trail provides access to subalpine scenery and an opportunity to reach an alpine lake destination. Expect typical Colorado high country conditions and come prepared with adequate water and sun protection.