Trail Running calendar near Bear Creek Lake Park 2025-2026

Experience scenic high altitude trail running in Fraser, Colorado at the Byers Peak Stampede Half Marathon and 5K, a fundraiser for the Shining Stars Foundation. Tackle a challenging half above 9,500 ft or enjoy a dirt road 5K.

Staunton Rocks! Marathon and Half deliver high altitude singletrack through Staunton State Park, offering sweeping mountain views, alpine wildlife, and serious vertical gain. With just 150 spots per distance, this rugged trail run fills fas..

Challenge yourself on the scenic rolling trails of Philip S. Miller Park in Castle Rock at Rock Hawk Trail Races on August 29, 2026, with 50K, 25K, 10K and 5K distances. Organized by Aravaipa Running, the event supports local open spaces an..

Challenge yourself on the Cirque Series at Arapahoe Basin on September 5, 2026 in Keystone, Colorado. This scenic 9.4 mile mountain course with 2,211 ft of climbing delivers steep, technical trail and big alpine views in a capped field.

Ned Ned Run in Nederland Colorado blends scenic trail and road running through the foothills, offering a half marathon, 10K and fun 5K for all abilities. Family friendly and costumes encouraged, with leashed dogs welcome in the 5K.

Explore scenic mountain trails at Snow Mountain Ranch in Granby Colorado with distances from 5K to 50K, rolling singletrack and big alpine views. Take on the Moosehead or Baby Moose challenge for extra bragging rights.

Experience the Black Squirrel Half Marathon at Lory State Park near Fort Collins on September 12, 2026. This 13.5 mile trail course features rolling singletrack with sweeping reservoir and mountain views and a pint glass plus pancake breakf..

Race to the summit of Pikes Peak on the historic Barr Trail in Manitou Springs, Colorado. Choose the full marathon up and down the 14,115 foot peak or the uphill Ascent for an epic alpine challenge and unforgettable views.

Race to the summit of Pikes Peak on the historic Barr Trail in Manitou Springs, Colorado. Choose the full marathon up and down the 14,115 foot peak or the uphill Ascent for an epic alpine challenge and unforgettable views.

Run rolling single track and forest roads around Buena Vista, Colorado, with sweeping Collegiate Peaks views. Choose a 30K or 50K and soak up 14er Fest vibes with camping, live music and local vendors.

Push your limits in a community driven 24 hour endurance run on the scenic Palmer Divide near Palmer Lake, CO on Sept 26, 2026. Loop the 0.82 mile course, chase distance awards and support local parks with every entry.

Run singletrack and crusher fine trails at Bear Creek Lake Park during the Bear Chase Race festival on October 3 to 4, 2026. Distances from 5K to 100K offer looped courses, plentiful aid stations, and a welcoming trail community.

Scenic Front Range trails through aspen, lodgepole pine and red rock await at Indian Creek Trail Runs near Sedalia, Colorado. Routes from 5 to 50 mile and 55k in a small field capped at 225, with staffed aid and a unique finisher award.