Trail Running calendar near South Fork 2025-2026

The Mountain Marmot Trail Run, presented by Durango Running Company, is a challenging 12-mile trail race held at Purgatory Resort in Durango, Colorado. The course features a steady climb of about 1,800 feet from the base to the top of Lift 8, followed by a downhill return, showcasing stunning single..

Ouray Mountain Trail Run takes place in Ouray, Colorado, on September 20, 2025, and covers 13 miles of mountainous terrain, starting and finishing at Fellin Park. A fundraiser for Ouray School, it’s hosted by PATT and the HS Outdoor Education Class to support student trips to Moab, Denver, Washingto..

Deep Creek Trail Half Marathon is a roughly 13-mile trail race in Telluride, Colorado. The course starts at the beginning of Last Dollar Road near the Telluride Airport, runs to the Deep Creek Corral, then climbs into Aspen-filled woods and follows the Deep Creek Trail back to Telluride. The mostly..

Sangre de Cristo Trail Festival is a multi-distance trail-running event held in Westcliffe, Colorado, with start/finish at Greenhorn/Music Meadows Ranch near the Grape Creek Trailhead. The festival features six distances: 8-Mile, 27k, 50k, 50-Mile, 100k, and 100-Mile, all run along the Rainbow Trail..

The McGinn Memorial Cross Country Challenge is held annually at Reservoir Hill in downtown Pagosa Springs, Colorado. This event features middle school and high school races, with courses running 3 kilometers for middle schoolers and 5 kilometers for high schoolers. The terrain includes a mix of hill..

Pagosa Mountain Chile Cha Cha Trail Races in Pagosa Springs, Colorado, offers 5K and 10K trail options on a fresh course at Cloman Park, just minutes from downtown. The gentle, low-elevation loop winds through Ponderosa Pine with clear views of the San Juan Mountains and Pagosa Peak, making it suita..

Sage Burner Trail Race is held at Hartman Rocks Recreation Area in Gunnison, Colorado. The event date is Saturday, October 11, 2025. Distances offered include: 50K 28K 15K The event location features high desert terrain with sage brush and 360 degree views of the Maroon Bells, the San Juan Mounta..

The 21st Annual Run Through Time Trail Marathon and Half Marathon takes place in Salida, Colorado. It offers a Trail Marathon, a Trail Half Marathon, and a 2 Mile Run, plus a free kids’ 400-meter dash in Riverside Park. Courses run on the Arkansas Hills Trail System—dirt/jeep roads and narrow, hilly..

San Juan Solstice 50 Mile Run is an ultramarathon scheduled for June 20, 2026. The event features a 50-mile course, with a dedicated course info page and an alternate course option, underscoring a challenging yet community-focused atmosphere. Entry is lottery-based with a cap of 300 runners; selecte..

The John Cappis is a challenging endurance peakbagging event held near Silverton, Colorado, featuring a roughly 50k course with about 19,000 feet of elevation gain. Participants summit multiple peaks in the rugged San Juan Mountains, navigating an unmarked, mostly off-trail route with elevations ran..

The Silverton Alpine Runs take place Saturday, July 18, 2026, in Silverton, Colorado, in the San Juan Mountains. The start and finish are at Silverton Memorial Park on Greene Street. Online registration for the event closes Sunday, July 12. Live split tracking is provided during race weekend. 50K..

The Kendall Mountain Runs take place in Silverton, Colorado on Sunday, July 19, 2026. The event offers the following distances: 12 Mile 11 Kilometer (approx. 6.8 miles) The 12-mile course starts in downtown Silverton and climbs from about 9,318 feet to the summit area near 13,060 feet, with rough..

The Kennebec Mountain Run is a 15-mile trail race in the La Plata Mountains near Hesperus, Colorado. The course gains about 3,100 feet and reaches a high point near 12,200 feet at Kennebec Pass. The event emphasizes alpine scenery, including views of the Animas and Dolores River valleys and alpine..

The Imogene Pass Run will take place in Telluride on Saturday 12 September 2026.