Trail Running calendar near Keystone 2026-2027

Experience the scenic HRCA Backcountry Wilderness Area with trail races for the whole family. Enjoy rolling hills and open views followed by a pancake breakfast and finisher medals for all participants in Littleton.

Above The Clouds Ultra in Woodland Park, CO features 50K and 10K courses through Lovell Gulch, Rampart Reservoir singletrack and forest roads with views of Pikes Peak. The route finishes at Woodland Park Middle School and is subject to Pike..

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.

Explore the scenic Philip S. Miller Park ridgeline trails with distances ranging from a 5K to a 50K ultramarathon. This festival features professional timing, finisher medals, and a family friendly obstacle course.

A Halloween-themed 5K run or walk in Aspen that benefits the local animal shelter. Bring your pet in costume for a chance to win prizes. The timed race offers cash prizes for top finishers and includes festive activities.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

Experience the beauty of the Colorado Front Range at the Indian Creek Trail Runs. Choose from four distances on scenic single track trails through pine forests and golden aspen groves near Sedalia.

Experience single track trail running at Bear Creek Lake Park with views of the Denver skyline. Choose between 5 and 10 mile distances followed by a post race party including a finisher meal and park entry.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

Methodist Mountain Ultra The Methodist Mountain Ultra (MMU) is a trail race set on the Methodist Mountain trail system near Salida, Colorado. It takes place at the northern end of the Sangre de Cristo mountains. The event features two dista..

Trail races at Bear Creek Lake Park in Lakewood CO offering 5 km, 15 km, a 5 plus 15 double, and a kids 1 km with a stuffed bear for finishers. Courses are mostly dirt, single and double track, and fully marked.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

Experience 13.1 miles of singletrack trails and hills in the Highlands Ranch Backcountry Wilderness Area. Enjoy custom medals and a post race pancake breakfast while competing for cash prizes in various categories.

A trail race in Louisville, Colorado offering half marathon, 10 km and 5 km distances on dirt trails with views of the Flat Irons. The event includes aid stations, drop bag service and post race festivities in a family friendly setting.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

A winter trail event near Colorado Springs with 50k, half marathon and 10k courses on dirt trails and notable elevation. Routes start at Bear Creek Regional Park and follow historic High Drive and Gold Camp Road.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

Experience the rugged beauty of Staunton State Park at the Sawmill Trail Runs. Choose between 50km, 16 mile, or 8 mile distances through Colorado meadows and granite cliffs in this late season mountain challenge.

Experience winter trail running at Cheyenne Mountain State Park with views of Pike's Peak. Choose from traditional race distances or unique timed events ranging from 6 to 15 hours across four scenic loops.

The 22nd Annual Run Through Time in Salida, Colorado features a trail marathon, half marathon, a 2 mile run and a free kids 400 meter, on single track and dirt roads at 7000 to 9000 feet. Race socks and a light post-race meal are included.