Trail Running calendar near Nathrop 2026-2027

This ultramarathon explores Colorado's Wet Mountains on a tough 100-mile or 50-mile course. The route crosses diverse ecosystems, from wet forests to arid valleys, with 22,500 feet of climbing. Only 75 spots are available per distance.

Experience a historic Colorado Springs race through towering sandstone formations and landmarks like Balanced Rock. Choose between road and trail distances for a scenic run in Garden of the Gods Park.

Prepare for the Race Across the Sky at this three day training camp in Leadville. Run key sections of the 100 mile course alongside veteran guides and attend educational panels on nutrition and biomechanics.

Event Details Ring the Springs is a trail running event taking place on June 20, 2026, in Colorado Springs, Colorado. The event offers three distance options: a 100K, a 50K, and a 35K. All races start and finish at Rock Ledge Ranch, located..

Celebrate the longest day of the year with a scenic trail run through Beaver Creek Resort. Enjoy blooming wildflowers and breathtaking mountain views across diverse single track and gravel courses.

Explore Colorado's peaks in this series of five mountain races. Run four scenic half marathons and a challenging 25K across the state from June to September. Participants can choose to tackle three, four, or all five events.

Experience the highest trail marathon in the USA reaching 13185 feet at Mosquito Pass. Choose between a 26.4 mile marathon or a 15.46 mile heavy half through Leadvilles historic mining district and rugged high altitude terrain.

Celebrate the Fourth of July at over 10,000 feet in North America’s highest city. This 5K run and walk through downtown Leadville supports local youth athletics and begins just before the annual holiday parade.

Celebrate 50 years of history at the Vail HillClimb, a 12.2 km mountain race gaining over 2,000 feet of elevation. Run from Vail Village to the scenic Mid-Vail finish line for incredible views and commemorative awards.

The 1876 Centennial Run in Snowmass Village offers four unique distances, from a 3.76k to an 18.76k challenge. The event starts and ends at the New Belgium Ranger Station and is part of the Colorado Brewery Running Series, with proceeds sup..

Experience a long weekend of trail running and hiking in Buena Vista, Colorado. Enjoy daily adventures ranging from 10 to 20 miles, a group peak ascent, and riverside lodging in the heart of the Sawatch Range.

Experience high altitude trail running through historic Colorado ghost towns and mines at over 10000 feet. Choose from distances ranging from 10 miles to 100 miles in the scenic South Park Valley.

Experience Crested Butte’s oldest trail challenge with running and mountain biking events. Choose between a 25 km loop or the classic 15 km sprint in this high elevation mountain competition.

Experience an endurance challenge through historic Colorado mining districts with the Silver Rush 50 Run. Choose between 50 mile, 15 mile, or junior 5k distances while competing for a qualifying spot in the Leadville Trail 100.

Experience a high altitude mountain race through the Sawatch range of the Colorado Rockies. This 101 mile loop features historical ghost towns and alpine passes with over 23000 feet of elevation gain.

Experience the mountain trails of Aspen Snowmass with three distinct race distances. Runners can choose between a 50K trek across four mountains a 25K trail run or a 10K course starting from the Elk Camp Gondola.

Experience high altitude trail running at 10,000 feet on the scenic Vail Mountain in Colorado. Choose between a 5K or 10K course featuring mountain views, wildflowers, and a unique gondola ride to the starting line.

Experience a historic mountain run on Pikes Peak climbing to an altitude of 10,200 feet. This 12.6 mile trail race features a 3,630 foot vertical gain through the scenic landscapes of Manitou Springs.

The TransRockies Run is a three-day stage race through the Colorado Rockies, from Hope Pass to Red Cliff. Choose between the 51-mile Full Pint or the 35-mile Half Pint. Runners finish each day at a fully supported camp with meals, showers,..

The Pikes Peak Ultra on July 25, 2026, features trail races from 20K to 50 miles in Colorado Springs. Starting at Bear Creek Park, the course includes views of Pikes Peak and a summit of Mt. Rosa for longer distances. Organized by Mad Moose..