“The first half of the Spring Brook Loop if riding clockwise - a rocky climb leading into the forest. ”
1.1
Miles1.8
KMSingletrack
Local Club: Boulder Mountainbike Alliance
Oct 23, 2026: Hidden Valley and Degge trails are officially open to bikes!
Oct 20, 2026: Boulder County Commissioners Designate Trail Through Tucker Complex
Oct 15, 2026: South Boulder Trail Connection: What Happened at OSBT and What’s Next
Land Manager: Boulder County, CO - Parks and Open Space
8.4 mi 13.5 km • 705' Up 214.85 m Up • 706' Down 215.04 m Down
12.6 mi 20.2 km • 943' Up 287.5 m Up • 943' Down 287.41 m Down
6.5 mi 10.4 km • 253' Up 77.06 m Up • 252' Down 76.87 m Down
7.8 mi 12.6 km • 1,516' Up 462.02 m Up • 1,510' Down 460.32 m Down
8.3 mi 13.4 km • 372' Up 113.47 m Up • 371' Down 113.22 m Down
15.4 mi 24.8 km • 1,136' Up 346.19 m Up • 1,136' Down 346.21 m Down
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