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  • Flaming Foliage Relay Race

    Flaming Foliage is an overnight team relay race adventure with single track trails, from Idaho Springs to beautiful Buena Vista, over Guanella, Georgia & Fremont Passes. Covering 165 miles, this […]

  • SHIFRUNS: Trail Edition Run, Walk or Bike for ALS

    Colorado Mountain College 901 S Hwy 24, Leadville, CO, United States

    SHIFRUNS: Trail Edition - #miles4ALS Saturday September 13, 2025 9:00am CMC Leadville, CO For the first time, we are bringing our challenge to the dirt. Choose your passion with either […]

    $40
  • people in a bike race.

    Colorado High School Cycling League MTB Races

    Dutch Henry - CMC Timberline Trails Leadville, CO, United States

    Colorado High School Cycling League Mountain Bike Races take place mainly on Timberline Trails behind the Colorado Mountain College and at Dutch Henry Hill. Races take place Saturday, September 20th […]

  • 8th Annual Haunted Hills Race

    Colorado Mountain College 901 S Hwy 24, Leadville, CO, United States

    Come race the scariest race in the Central Rockies at the 8th Annual Haunted Hills Race! Racers will race through the haunted CMC Leadville trails on their bikes, their feet, […]

    $10 – $30

  • Tennessee Pass Night Jam – Winter Mountain Bike Series

    Tennessee Pass Nordic Center 232 County Road 29, Leadville, CO, United States

    Real climbs, real descents, real fun! Takes place at the Tennessee Pass Nordic Center on Saturday, February 7th Distance: 10.7 miles Climb: 1,121 ft Descent: -1,124 ft

  • Mineral Belt Mayhem – Winter Mountain Bike Series

    Downtown Leadville Harrison Avenue, Leadville, CO, United States

    Start and finish on Harrison Ave. in front of Cycles of Life. Participants will travel clockwise around the 11.6 mile Mineral Belt Trail with a little singletrack thrown in for […]

  • Fatty Patty 50K – CANCELLED

    Dutch Henry Hill and Mineral Belt Trail Leadville, CO, United States

    Due to trail conditions the Fatty Patty winter mountain bike race has been cancelled. Instead Cloud City Wheelers will be hosting a Group Ride starting at 10am at the Twin […]

  • East Side Epic – Winter Mountain Bike Series

    Leadville's East Side Mining District Leadville, CO, United States

    The name says it all. Through Leadville's historic east side mining district, this route might have perfect conditions, fresh snow, or maybe even dirt.

  • Iron Hill 10K and Kids Fun Run

    East 6th Street and Poplar Street Leadville, Colorado

    The Iron Hill 10K winds through the historic mining district of Leadville, Colorado — climbing nearly 800 feet before returning you to the finish with a story to tell. Plus, […]

    $25
  • a dock on a lake with mountains in the background.

    Turquoise Lake 20k

    Turquoise Lake - Matchless Boat Ramp Leadville, CO, United States

    The Turquoise Lake 20K offers unparalleled mountain views as you run clockwise around scenic Turquoise Lake. The first 6.5 miles of the course consists of hilly paved road. The final […]

  • Fish Hatchery 5K

    Leadville Fish Hatchery 2844 Hwy 300, Leadville, CO, United States

    Located at the historic Leadville National Fish Hatchery, the Fish Hatchery 5K features a scenic cross country style course that winds through subalpine forest near and around the Evergreen Lakes […]