Trail Running calendar near Pine Junction Area 2025-2026

Run along Boulder Reservoir on flat, mostly dirt trail courses with sweeping Rocky Mountain views. Choose from 10K, 3 4 marathon, half, full marathon or relay, with USATF certified courses, a shirt and a finisher medal.

Take on the iconic Leadville Trail 100 Run, a 100 mile ultramarathon through the Colorado Rockies that climbs to Hope Pass and delivers breathtaking high altitude views. A true test of endurance and grit.

Run mountain trails in Fraser, Colorado on August 22, 2026 with a scenic high elevation half marathon or a friendly 5K along dirt roads. All proceeds benefit the Shining Stars Foundation and dogs on leash are welcome.

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..

Join Rock Hawk Trail Races on August 29, 2026 at Philip S. Miller Park in Castle Rock for scenic rolling trail courses from 5K to 50K. Enjoy friendly aid stations, sweeping ridge views, and the chance to support local open spaces and trails..

Run the Cirque Series at Arapahoe Basin: a scenic 9.4 miles with 2,211 ft of climbing on high alpine trails around Montezuma and Little Lenawee. Finish in Mountain Goat Plaza with live music, food, and festival vibes.

Join the Ned Ned Run in Old Town Nederland, Colorado in September, a 44 year tradition offering road and trail distances from a scenic 5K to a tough half marathon. Family friendly and costumes encouraged; dogs on leash welcome in the 5K.

Run aspen groves and mountain trails at Snow Mountain Ranch in Granby, Colorado on September 12, 2026. Choose 5K to 50K routes on dirt and grass with aid stations and crew support.

Take on the legendary Pikes Peak Ascent and Marathon in Manitou Springs, Colorado, racing Barr Trail to the 14,115 foot summit. Choose the 13.3 mile Ascent to the top or the full 26.2 mile marathon up and back for a stunning high altitude c..

Take on the legendary Pikes Peak Ascent and Marathon in Manitou Springs, Colorado, racing Barr Trail to the 14,115 foot summit. Choose the 13.3 mile Ascent to the top or the full 26.2 mile marathon up and back for a stunning high altitude c..

Choose a 30K or 50K and tackle scenic single track and forest roads around Buena Vista, Colorado, with sweeping Collegiate Peaks views. Part of 14er Fest, this trail race mixes rugged desert style sections with festival weekend energy.

Test your limits at 24 Hours of Palmer Lake, a low key community driven endurance run atop the Palmer Divide at 7,240 feet. Short loop laps keep the vibe close and the first ten to reach 100 miles earn an on site buckle.

Sawatch Ascent is a mountain 50k in Nathrop, Colorado, around Mount Princeton spanning 33 miles and about 7,000 feet of climbing. Expect long singletrack, big alpine views, and finishers perks like a shirt, medal, and pro photos.

Join the Bear Chase trail running festival Oct 3 to 4, 2026 at Bear Creek Lake Park in Lakewood, Colorado with distances from 5K to 100K on scenic singletrack. Proceeds support Lakewood and Bear Creek open space projects.

Run scenic dirt trails and wide mountain views at the HRCA Wildcat Mountain Trail Races in Littleton, CO. Choose a 10 mile, 10K, or kids fun run and enjoy post race pancakes, medals, and a festive mountain day.

Explore scenic single track through aspen and pine in the Colorado Front Range at Indian Creek Trail Runs, with distances from 5 miles to 50 miles. Enjoy varied terrain, well stocked aid stations, limited camping and a unique finisher award..

Run the rugged single track of Palmer Park at the Bobcat Trail Races in Colorado Springs, with 50K, 25K, 10K and 5K options. Enjoy rocky bluffs, forested trails and city views including Pikes Peak on a challenging, scenic course.

Take on the Blue Sky Trail Marathon or Half around the hogbacks near Fort Collins, Colorado on scenic singletrack with rocky ridgelines and big views. Limited fields and stocked aid stations make for a focused trail race.

Take on scenic single track and dirt trails at Bear Creek Lake Park with a 5 mile option or a 10 mile double lap and skyline views. Celebrate at the finish festival with a shirt, a finisher mug for 10 mile runners, food and a shoe donation..

Tackle scenic single track trails at Bear Creek Lake Park in Lakewood CO with 5 km, 15 km, a 5 plus 15 double and a kids 1 km. Enjoy race swag and a pancake breakfast amid varied terrain and rolling hills.