Intermediate/Difficult
2.8 (12)
Local Club: Boulder Mountainbike Alliance
Feb 22, 2024: Join us in Shaping Colorado’s Outdoor Future
Feb 1, 2024: Eagle-Sage Trail Closures
Jan 31, 2024: Coalton Trail Reopening Feb. 1
Land Manager: USFS - Boulder Ranger District Office
The Cougar Slayer
69.6 mi 112.0 km • 8,965' Up 2732.51 m Up • 11,815' Down 3601.28 m Down
Nederland, CO
West Mag to Eldora and Back
18.1 mi 29.1 km • 2,135' Up 650.8 m Up • 2,136' Down 650.93 m Down
Nederland, CO
Switzerland Trail Gold Hill Road Loop
25.3 mi 40.7 km • 1,949' Up 593.94 m Up • 1,948' Down 593.78 m Down
Nederland, CO
North Sourdough and St. Vrain Loop
5.4 mi 8.7 km • 641' Up 195.34 m Up • 650' Down 198.23 m Down
Nederland, CO
Walker Ranch
7.8 mi 12.6 km • 1,516' Up 462.02 m Up • 1,510' Down 460.32 m Down
Coal Creek, CO
The Whole Casino
16.9 mi 27.1 km • 2,451' Up 746.95 m Up • 2,447' Down 745.8 m Down
Central…, CO
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