Trail Running calendar near Gunnison 2026-2027

Trail runs of 25 miles and 50 miles in Buena Vista Colorado on May 2 2026 with single track and jeep trails near the Arkansas River and about 3,500 feet elevation change per loop.

Run the Sky Pilots Ouray Backyard Ultra in Fellin Park, completing a 4.167 mile loop each hour until one runner outlasts the field. Enjoy riverside trails, mountain views near 7,700 feet and shared aid.

Kick off the trail running season in Eagle, Colorado, with a 14K or 6K race through scenic pinyon groves and single track trails ending with a festive afterparty.

Challengers tackle a 6 mile climb gaining 2000 feet of elevation to reach the South Rim of the Black Canyon. Choose between a timed run or a scenic walk ending with a mountain breakfast and park views.

Experience the beauty of the Roaring Fork Valley with a point-to-point trail race from Carbondale to Basalt. Choose between 10-mile and 28k distances featuring iconic single track trails and a festive finish at Rock Bottom Ranch.

Celebrate Memorial Day weekend with the Spirit Trail Race in Buena Vista, Colorado, a scenic trail event with marathon, half marathon and 9k options. Start in town square, enjoy Paddlefest fun, and support local nonprofits.

The Pyro's Push It Up River Trail Run will take place in New Castle on Monday 25 May 2026. You can run 8 kilometers.

A 20K loop around Turquoise Lake in Leadville, CO, running clockwise with hilly paved road then single-track trail. Proceeds support Leadville youth athletics; adult entry is $40 and youth 17 and under enter free.

A 5K trail run at the Leadville National Fish Hatchery on May 31, 2026, with a cross country style route through subalpine forest around Evergreen Lakes and lower Rock Creek. Proceeds support Leadville youth athletics and recreation.

Experience trail running in the Colorado Rockies at Snowmass Village. Choose between a single 6.6 mile loop or endurance challenges of 6 and 24 hours while enjoying mountain views and a village festival atmosphere.

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.

A 50 mile mountain trail run in Lake City, Colorado held near the summer solstice. Entrants must be 18 or older, have prior trail ultra experience, and carry a MAProgress tracker for live tracking.

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.

A high-elevation, mostly off-trail mountaineering run near Silverton, Colorado covering about 50 km with roughly 19,000 ft of gain. Entry is restricted to qualified members of the organizing club and participant spots are limited.

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.

A July 4 5K in downtown Leadville held above 10,000 feet, with adult and youth entries and proceeds supporting local youth athletics and recreation.

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.

A 100 mile clockwise loop in the San Juan Mountains around Silverton, Colorado, with about 33,000 feet of climb and alpine terrain topping Handies Peak above 14,000 feet. The route passes near Silverton, Lake City, Ouray, Telluride and Ophi..

Experience Crested Butte's oldest trail challenge with 15k and 25k runs or a technical 25k mountain bike race. Navigate scenic singletrack and alpine ridges finishing with a post race brunch.

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.