Trail Running calendar near Jackson County 2025-2026

Run the Twin Mountain Trudge in Laramie WY on Jan 10, 2026, choosing a ~10.2 mile single loop or a ~20.5 mile double. Thigh deep snow, ice and about 2,000 feet of climbing make this a rugged winter course that demands proper gear and grit.

Join the USCSA Cross Country Ski Racing Festival at Snow Mountain Ranch in Granby Colorado on Jan 24 and 25 2026. Collegiate teams and middle and high school racers take on classic distances and a skate sprint over two action packed days.

Take on a scenic backcountry snowshoe race near Nederland, Colorado with 18K and 30K routes along the Sourdough Trail. Donation based event requires snowshoes and offers aid at Brainard Lake plus a warming tent and hot drinks at the finish.

Race The Ranch is a scenic snowshoe race at Snow Mountain Ranch in Granby Colorado on April 4 2026, with 50k, 25k and 5k loop options over snowy singletrack and groomed trails. Finishers receive a custom bib, Fractel beanie and engraved Mii..

Join Run the Ranch April 10 and 11, 2026 at Sylvan Dale Guest Ranch in Loveland, Colorado for trail races on private ranch trails, from 5K and 10K to timed 4 hour, 6 hour and 12 hour solo and relay events. Virtual options available.

Run the Poudre River Trail April 11 and 12 2026 at the NoCo Urban Ultra and Relay, with 50 and 100 mile solo or relay options. Enjoy a scenic route through Fort Collins, Timnath, Windsor and Greeley and celebrate at a lively finish festival..

Take on scenic singletrack loops near Fort Collins, Colorado, with 25 miles or 50 miles of rugged high country and big vertical gain. Expect technical trails, sweeping views and occasional wildlife encounters.

Run the Summits Trail Runs on June 6, 2026 at Granby Ranch Resort, Colorado, with options from a 6 mile to a challenging 50k. Experience single track trails, alpine meadows, and big climbs in a limited field for an intimate mountain race.

Run the Crazy Legs 10k+ at Devil's Backbone Open Space in Loveland, Colorado, a scenic looped course through Hidden Valley and Hunter Loop. Expect volunteer staffed aid, local sponsors, and a friendly community vibe; park pass required.

Hit the foothill dirt trails at Lory State Park on June 27 for the Timberview Trail Run with 10 mile, 5 mile and beginner friendly 5K options. Finish with pancakes, craft beer and finisher swag at this USATF sanctioned community favorite.

Test your trail legs at the Spring Creek Memorial Trail Run in Steamboat Springs on July 18 2026. Choose a challenging 9.5 mile loop with steep climbs and stream crossings or a rolling 5K, with proceeds supporting local nonprofits.

Experience high alpine trails and rugged scenery in the Never Summer 100k and 60k from Gould, Colorado, with challenging climbs across ridges, peaks and alpine lakes. Choose 100k, 60k or the Dirty Double for a true mountain ultra adventure.

The Summit 200 is a 200 mile loop around Summit County Colorado that climbs into high alpine single track above 12,700 feet. Capped at 100 runners and requiring a prior 100 mile finish, it is a remote, high altitude test of endurance.

Join the Wild West Relay, a 200 mile point to point run across Colorado from Fort Collins to Steamboat Springs, July 31 to August 1, 2026. Teams and solo runners of all sizes welcome for scenic, team driven endurance adventure.

The Lory Summer Trail Series will take place in Bellvue from Tuesday 4 August 2026 to Tuesday 25 August 2026. You can run between 5 and 12 kilometers.

The Eltuck Valley 12K Trail Series will take place in Bellvue on Tuesday 4 August 2026. You can run between 5 and 12 kilometers.

Run the Rockies Trail in Frisco, CO features 5K to half marathon routes on the scenic Frisco Peninsula with lakeshore finishes and reservoir views. Finishers receive a gift and an afterparty with food, music and beer for 21+.

Emerald Mountain Epic in Steamboat Springs on August 8 and 9, 2026 is a two day mountain bike and trail running weekend on scenic singletrack dirt trails. Race marathon, half or bike distances with a limited field of 500 per day.

Run the Med Bow Rail Marathon or Half on August 15, 2026, along the scenic Medicine Bow Rail Trail near Laramie, Wyoming. Enjoy wide gravel trails, lake loops and mountain views while supporting trail upkeep; all finishers get a medal.

Soak up Rocky Mountain and reservoir views while racing varied distances at the Boulder Rez Marathon. From 10K to the full marathon and relay, enjoy a scenic, mostly flat trail course and a festive finish with a shirt and medal.