Easy/Intermediate
2.7 (10)
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: Erie Singletrack Advocates
Broomfield Trail and Coal Creek Trail loop
19.7 mi 31.7 km • 449' Up 136.77 m Up • 452' Down 137.66 m Down
Erie, CO
Farmers Highline Canal and Big Dry Creek Loop Trail
17.4 mi 28.0 km • 327' Up 99.77 m Up • 326' Down 99.38 m Down
Northglenn, CO
North Boulder Loop
8.3 mi 13.4 km • 372' Up 113.47 m Up • 371' Down 113.22 m Down
Boulder, CO
Spring Brook Loop
12.6 mi 20.2 km • 943' Up 287.5 m Up • 943' Down 287.41 m Down
Superior, 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
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