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Trail Running calendar near Jackson County 2026-2027

We have found 62 Trailruns within 80 miles of Jackson County. See below where and when you can find the races.

NoCo Urban Ultra

Fort Collins - 61 mi from Jackson County

A long-distance event along the Poudre River Trail on April 11, 2027, offering 50 mile and 100 mile solo and relay options through Fort Collins, Timnath, Windsor and Greeley. The course is supported with aid stations, exchange zones and fin..

May 2027

Quad Rock 50

Fort Collins - 61 mi from Jackson County

Trail races near Fort Collins offering 25 and 50 mile options on mostly singletrack through Lory State Park and Horsetooth Mountain Park, featuring about 5,500 ft or 11,000 ft of vertical gain, staffed aid stations, and marked trails.

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