Intermediate/Difficult
4.7 (9)
Local Club: Boulder Mountainbike Alliance
Land Manager: City of Boulder, Colorado - Parks and Recreation
Chapman Drive Out-And-Back
11.2 mi 18.1 km • 1,330' Up 405.46 m Up • 1,330' Down 405.44 m Down
Boulder, CO
Betasso Preserve
7.1 mi 11.5 km • 768' Up 234.03 m Up • 759' Down 231.27 m Down
Boulder, CO
Down and Dirty
18.8 mi 30.3 km • 1,068' Up 325.44 m Up • 1,066' Down 324.88 m Down
Superior, CO
Marshall Mathers LP
8.4 mi 13.5 km • 705' Up 214.85 m Up • 706' Down 215.04 m Down
Superior, CO
Rocky Flats NWR North
6.5 mi 10.4 km • 253' Up 77.06 m Up • 252' Down 76.87 m Down
Superior, CO
Heil to Picture to Hall and Back
34.1 mi 54.9 km • 3,648' Up 1111.87 m Up • 3,648' Down 1111.94 m Down
Lyons, CO
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