Easy
4.5 (15)
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
Heil Outer Loop from Corral TH
14.1 mi 22.6 km • 1,549' Up 472.24 m Up • 1,550' Down 472.41 m Down
Lyons, CO
Heil Ranch
8.9 mi 14.3 km • 982' Up 299.36 m Up • 979' Down 298.54 m Down
Lyons, CO
Hall Ranch Full Loop
12.0 mi 19.3 km • 1,560' Up 475.46 m Up • 1,560' Down 475.45 m Down
Lyons, CO
Indian Peaks Traverse (IPT)
71.3 mi 114.8 km • 9,126' Up 2781.51 m Up • 5,767' Down 1757.86 m Down
Boulder, CO
Valmont Bike Park - Singletrack Hotlap
2.0 mi 3.2 km • 78' Up 23.73 m Up • 79' Down 24 m Down
Boulder, CO
South Saint Vrain Figure 8
16.3 mi 26.2 km • 2,072' Up 631.58 m Up • 2,086' Down 635.74 m Down
Nederland, CO
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