Morrison
Trail Running Calendar near Morrison 2026-2027
Explore the top trail runs near Morrison for 2026-2027! We've gathered 41 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A trail race weekend in Lakewood CO offering distances from 5K to 100K on mostly singletrack dirt trails with aid stations, drop bags, and looped course formats.
Experience the scenic HRCA Backcountry Wilderness Area with trail races for the whole family. Enjoy rolling hills and open views followed by a pancake breakfast and finisher medals for all participants in Littleton.
Trail festival in Castle Rock offering family adventure and races from a 5K to a 50K across Philip S. Miller Park and Ridgeline Open Space.
Trail races in Louisville, CO paired with an Oktoberfest finish, wooden medals, a free pretzel and live Bavarian music.
OUTLAST Denver is a six hour trail challenge where runners complete a 5K every hour, earn patches or a medal for laps, and can place on a national leaderboard.
Run the Rocks is a fundraiser at Red Rocks Park and Amphitheatre on October 11, 2026 offering a 5k and a 1.3 mile run and walk to support lung health in Colorado.
A dog-friendly 2.5 mile loop on a hilly dirt path in Lone Tree raising funds for the Colorado Animal Care Foundation, with prizes for participating dogs.
Indian Creek Trail Runs in Sedalia, Colorado on October 17, 2026 offers multiple trail and ultra distances through montane forests, aspen groves, red rock formations and prairie vistas with city views from several viewpoints.
A traditional Backyard Ultra at Luvin Arms Animal Sanctuary on October 24-25, 2026 with hourly 4.167 mile loops, on-site aid, camping, and proceeds supporting the sanctuary.
An approximately 18 mile trail across Boulder's five peaks with about 5,000 ft of climbing on October 24, 2026; limited to 100 participants with a $25 fee donated to recovery.
MonsterDASH Louisville on Oct 25, 2026 offers a new half marathon plus 5k, 10k and a kids mile with costume contests, expo, and themed runner perks.