Trail Running calendar near Red Feather Lakes 2026-2027

Experience the wild spaces of Northern Colorado with a weekend of trail races ranging from a half marathon to a 50 mile ultra through scenic forests and scout camp trails. Stay on site with available camping and community meals.

A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.

The Great Bison Shuffle Half Marathon will take place in South Greeley on Saturday 26 September 2026. You can run between 5 and 13 miles.

Experience the scenic single track trails of Steamboat Springs during the Emerald Mountain Trail Run. Choose between the 4 mile or 12k distances through aspen groves to support the local Boys and Girls Club.

Trail marathon and half near Fort Collins along redstone singletrack and technical rock sections, with stocked aid stations, drop bag options, and caps of 400 entries per distance.

MonsterDASH Louisville on Oct 25, 2026 offers a new half marathon plus 5k, 10k and a kids mile with costume contests, expo, and themed runner perks.

Timed 6-, 12- and 24-hour running and relay events on a certified 1.0002 mile dirt loop at Colorado Youth Outdoors Swift Ponds in Fort Collins, with full-service aid every lap and locker-style lodge support nearby.

A trail running event in Louisville, CO on November 14 offering a half marathon, 10K and 5K on out-and-back dirt courses with several aid stations, designated drop bag area, limited onsite parking and family-friendly post-race festivities.

Long-distance races along the Poudre River Trail offering 50 mile and 100 mile solo and relay options, with the 50 mile point-to-point finishing at Island Grove in Greeley. Supported course with aid stations and exchange zones.

Trail races near Fort Collins offering 25 and 50 mile options on mostly singletrack through Lory State Park and Horsetooth Mountain Park, featuring about 5,500 ft or 11,000 ft of vertical gain, staffed aid stations, and marked trails.

A multi format running festival near Eaton Colorado on a private 146 acre property featuring loop courses, relay and virtual options, sauna and cold plunge access, plus camping and glamping.

Trail races at Granby Ranch Resort in Colorado on June 12, 2027, across multiple distances including a 14-hour Elevation Challenge scored by total elevation climbed. The event uses mountain single-track, aid stations, drop bags, and has a 2..