Easy
2.6 (5)
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: Boulder County, CO - Parks and Open Space
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
Post Work Sunset Ride
6.7 mi 10.8 km • 467' Up 142.33 m Up • 450' Down 137.04 m Down
Erie, 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
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
Super Betasso
16.3 mi 26.2 km • 1,788' Up 545.03 m Up • 1,788' Down 544.87 m Down
Boulder, CO
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