Intermediate/Difficult
3.3 (7)
Local Club: Boulder Mountainbike Alliance
Nov 17, 2025: Trail Update: South St Vrain
Nov 14, 2025: Another Step Closer to new Betasso Connector
Oct 24, 2025: Boulder County Moves One Step Closer to a Safer Boulder-to-Betasso Connection
Land Manager: USFS - Boulder Ranger District Office
East Mag Dots
13.8 mi 22.2 km • 1,075' Up 327.67 m Up • 1,074' Down 327.27 m Down
Nederland, CO
The N Bus Loop
13.0 mi 21.0 km • 1,490' Up 454.13 m Up • 1,489' Down 453.83 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
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
Sugarloaf to Gordon Gulch Loop
13.5 mi 21.7 km • 1,590' Up 484.64 m Up • 1,607' Down 489.88 m Down
Boulder, CO
Maryland Mountain Complete Tour
12.4 mi 20.0 km • 1,807' Up 550.77 m Up • 1,811' Down 552.05 m Down
Central…, CO
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