Trail Running calendar near Lake City 2026-2027

Join the Durango Running Club for a 5K fun run and walk along the Animas River Trail. This zero waste event supports immigrant services and kicks off the local Earth Day festival and parade.

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.

A roughly 14 mile loop around Vallecito Reservoir in Bayfield, Colorado, combining paved road, dirt road and singletrack with about 1,000 ft of climbing. The event features four aid stations, a cupless policy and a post-race meal with live..

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.

A last-person-standing ultra on Durango's Spurline trails. Run a 4.17-mile loop every hour until only one runner remains. All proceeds support local trail building and maintenance.

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.

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.

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.

A 100 mile mountain ultramarathon in Ouray, Colorado, with 41,862 feet of elevation gain, mandatory pre-race volunteer service or a $100 opt out fee, live SPOT tracking, cash prizes subject to drug testing, and a steep final climb to the Br..

Experience a high altitude 100 mile loop through the Colorado Rockies featuring 23,300 feet of gain. Run across alpine passes and historic ghost towns on the Continental Divide and Colorado Trails within a 37 hour limit.

Experience a high altitude trail adventure through Colorado's San Juan Mountains. Run past historic ghost towns and reach heights of over 12,900 feet on the scenic Alpine Loop.

Experience a historic high altitude climb in Silverton Colorado featuring a 12 mile summit run and an 11 km course. Scale Kendall Mountain and take in views of the San Juan Mountains in this classic mountain tradition.

An ultra running event in Creede offering 50 mile and 100 mile courses across the San Isabel and Rio Grande National Forests over two days, organized by Tempest Adventures under a USDA Forest Service permit.

Trail races on Colorado’s Grand Mesa with 50-mile, 55K and 30K options across high-elevation mountain trails. Camping is available and the event includes prizes, finisher awards, a raffle, food and beer.

Mountain trail races in Telluride with a **30K** loop (about 5,800 ft gain) and a **10 mile** loop (about 3,500 ft gain) on varied double track and singletrack terrain, finishing in town with alpine views.

A non-profit 15-mile trail race on August 1, 2026 near Hesperus, Colorado, climbing 3,100 ft to 12,200 ft at Kennebec Pass with views of the Animas and Dolores valleys. Proceeds benefit La Plata County Search & Rescue.

An unmarked, self navigated 100 mile challenge around Lake City Colorado requiring visits to 24 locations and a 48 hour cutoff. No aid stations or entry fee and the route includes five 14ers and six 13ers across rugged San Juans terrain.

A 100-mile mountain ultramarathon in Colorado's San Juan Range. The high-elevation course averages 10,000 feet with over 20,000 feet of climbing. It features a 38-hour cutoff and packet pickup in Durango.

Mountain races in Telluride, Colorado with five route options across alpine tundra and exposed ridgelines at altitudes above 13,000 ft; technical terrain and prior mountain experience are required.