Main Fork

Managing agency

Arapaho-Roosevelt NF — Boulder RD

Main Fork is a 12.2-mile loop trail located in Colorado near the Clear Creek Ranger District of Arapaho-Roosevelt National Forest. The trail offers a full-circuit hiking experience through the national forest, making it suitable for hikers seeking a moderate to longer day hike or backpacking opportunity. The loop configuration allows hikers to complete a round-trip route from a single trailhead without retracing their steps. This trail is managed by the Clear Creek Ranger District, part of the Arapaho-Roosevelt National Forest, ensuring regular maintenance and adherence to federal land management standards. The Main Fork trail provides access to the natural landscape of the Colorado Rockies, with opportunities to experience the forest environment characteristic of the Clear Creek watershed area. The 12.2-mile distance makes this an ambitious day hike or reasonable overnight backpacking trip for most hiking experience levels. For current trail conditions, seasonal closures, and specific trailhead access information, contact the Clear Creek Ranger District directly. Visitors should check local resources before heading out to ensure the trail is open and conditions are suitable for their planned visit.