Trail Running calendar near Empire 2025-2026

Quad Rock 25 and 50 deliver rugged singletrack and big Colorado climbs around Fort Collins, offering a 25 mile single loop or 50 mile double loop with roughly 5,500 or 11,000 ft of gain. Entries are capped and registration opens Dec 15, 202..

Join the Valkyrie Trail Race on May 9, 2026 at Cheyenne Mountain State Park for a women focused day of stunning singletrack, rocky descents and springtime views. Distances from short runs up to 50K ultramarathon welcome all levels.

Rugged trail running at Mueller State Park in Divide CO on May 16, 2026. Choose 10k, half marathon, marathon or a playful 12 hour loop draw where colored balls decide your next lap.

Ram Party Trail Runs in the Colorado Springs Woodland Park area offers distances from 15K to a rugged 55 Mile course around Rampart Reservoir and Rampart Range Road. Enjoy stunning high country trails, finisher awards and podium prizes.

Run the 50 Mile or 50K in Buffalo Creek Colorado on scenic singletrack through ponderosa pines, granite outcrops and burn areas. Proceeds support North Fork Volunteer Fire Department and finishers get food, drinks and a commemorative award.

Weld Your Mettle Running Festival in Eaton, Colorado on May 30-31, 2026 invites runners to repeat a scenic four mile loop for distances from a 7K up to 100 miles, plus relay and virtual options. Expect stocked aid, finisher swag, recovery t..

Run Great Divide Ultra June 6 and 7 2026 in Divide Colorado with distances from 25k to the first Colorado 100 mile on scenic loops in Mueller State Park. Expect big climbs, crew friendly aid, finishers awards and a post race meal.

Experience alpine single track through meadows and forests at Granby Ranch Resort on June 6, 2026, with distances from 6 mile to 50k. Test your limits in the Elevation Challenge where repeated loops add to your total climbed elevation.

Run scenic ridgelines and singletrack at Devil's Backbone in the Crazy Legs 10k+ Trail Run, then celebrate with awards at Loveland Aleworks. Entry includes a hat with a random patch and aid near mile 3, and parking passes are required.

Run scenic dirt trails around Barr Lake State Park, with continuous lake and Front Range views. Distances range from a 5K up to a challenging 50K, with looped courses, aid stations on longer laps and a cupless race policy.

Ring the Springs invites trail runners to Garden of the Gods in Colorado Springs with 100K, 50K and 35K routes that climb into Pike National Forest and Mount Rosa. Enjoy scenic singletrack and a finish at Rock Ledge Ranch.

Run high alpine trails above Leadville, Colorado on June 27, 2026, with a rugged marathon and a shorter Heavy Half reaching Mosquito Pass at 13,185 feet. Expect old mining roads, stunning mountain views and a true high country challenge.

Enjoy scenic treetop trails and Horsetooth Reservoir views at the Timberview Trail Run in Lory State Park, with 5K, 5 Mile and 10 Mile options for all abilities. This USATF event is 100% plant based and finishes with pancakes and craft beer..

Race in the Clouds at Alma Cemetery Meadow is a high country weekend of mountain bike, trail and off road duathlon racing at 10,600 feet. Multiple distances, youth events and on site camping create a true alpine festival vibe.

Run under the full moon on Highlands Ranch trails in Chase the Moon, an overnight looped endurance event offering 12, 6 and 3 hour solos plus 50K and team relays. Enjoy scenic dirt trails, aid stations, and a festive night race atmosphere.

Silverheels Trail Runs in Como Colorado offer high elevation trail races from 10 to 100 miles through aspen groves, creeks, and historic mining country. Expect alpine views, tough climbs, and true mountain ultrarunning.

Experience Leadville's Silver Rush weekend in July 2026 with a rugged 50 mile out and back, a 15 mile option and a juniors 5K, plus a combined run and bike challenge. Enjoy high alpine views, big elevation and well stocked aid.

High Lonesome 100 is a rugged 100 mile mountain loop in Colorado, crossing five alpine passes and sections of the Continental Divide and Colorado Trail. Mid July racing delivers big climbs, sweeping alpine views, and a true endurance test.

Three days of high alpine trail running around Leadville, Colorado crossing the continental divide from Hope Pass to Red Cliff with stunning fourteener views. Choose Full Pint or Half Pint stages, enjoy on site camp life with live bands, sh..

Tackle the iconic Barr Trail Mountain Race, a scenic 12.6 mile climb and descent from Manitou Springs toward Pikes Peak. This summer Front Range classic delivers rugged alpine views and counts toward the Garden to Peak Challenge.