Roxborough Ultras

Roxborough Ultras

Roxborough Ultras offers two supported trail races that start in Roxborough State Park and finish at the Sharptail Trailhead or Sharptail Ridge Open Space Trailhead. The finish area includes food trucks and New Terrain Brewing.

The courses use predominantly singletrack with technical sections and sustained climbs. Aid stations are fully supported and placed to support continuous effort across each distance. The event emphasizes minimizing impact on the landscape and works with Roxborough State Park, the U.S. Forest Service, and Douglas County Open Space. Organizers plan ongoing stewardship activities including coordinated trail work days.

Distances

• 50.2 miles Roxborough 50 Mile, 9,337 feet elevation gain
• 31.1 miles Roxborough 50K, 5,279 feet elevation gain

Roxborough 50 Mile covers red rock formations into higher country and returns to the Front Range. Terrain includes predominantly singletrack with sections of forest service road, long exposures, and sustained climbs. The final roughly 10 miles are a runnable descent to the finish. The 50 Mile race is fully supported, allows trekking poles, and does not permit pacers. The cut off time is 15 hours.

Roxborough 50K is technical singletrack with sandstone features, long early climbs, rolling montane valleys, and an extended runnable descent to the finish. The 50K is fully supported and has a 12 hour cut off. Visit the organization's website for the most recent information.

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