The Mummy Range Loop in Roosevelt National Forest traverses the high terrain of the Comanche Peak Wilderness, circling through alpine meadows and above-treeline basins on the eastern edge of the Colorado Front Range. The 12-mile circuit gains 2,800 feet over its full length, offering a sustained wilderness experience that covers two distinct drainages and multiple viewpoints.
The Mummy Range sits just north of Rocky Mountain National Park, sharing similar terrain without RMNP's permit requirements and visitor volume. The loop is a serious undertaking that rewards experienced hikers with substantial alpine scenery.
The Route
The loop begins from the CO-14 trailhead and follows a creek drainage into the Comanche Peak Wilderness. The outbound leg climbs to the high alpine zone via switchbacks, reaching above treeline at approximately 11,000 feet. The loop crosses the high basin on the return via a parallel drainage, giving hikers different terrain on the descent.
The above-treeline section occupies several miles of the loop, providing extended exposure to tundra and alpine meadow terrain. Wildlife activity in these sections includes marmot, pika, elk, and occasional raptor.
What to Expect
This is a full-day hike that requires early starts. The above-treeline sections are completely exposed to afternoon weather. Colorado's afternoon thunderstorm pattern means planning to be off the high terrain by noon is the safe approach.
Navigation skills and a downloaded topo route are important. Trail signage in the wilderness is minimal in places. The connection between drainages on the high traverse requires route-finding in some sections.
Nearby
Fort Collins is about 50 miles east via CO-14. The Rustic area along the Poudre Canyon has several campgrounds. The Comanche Peak Wilderness connects to the Rawah Wilderness to the northwest, making multi-day route planning possible for experienced backpackers.
Leave No Trace
This trail receives enough use that following Leave No Trace principles is important for preserving the experience for future visitors. Stay on the marked trail to prevent erosion. Pack out all waste. Avoid camping within 200 feet of water sources or the trail. Use existing fire rings only where campfires are permitted, and check current fire restrictions at checking conditions before you go before any visit. The trail and surrounding terrain remain in good condition because previous visitors have respected these norms.
Safety Considerations
The strenuous rating reflects the trail's general character under typical conditions. Weather, seasonal snow, and trail conditions can change the experience significantly. Carry the 10 Essentials on any full-day outing. Inform someone of your plans and expected return time before heading out, particularly on longer or more remote trails. Cell service varies throughout Roosevelt National Forest and may be unreliable in canyon bottoms or remote terrain.