Intermediate
3.6 (8)
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
Betasso Preserve
7.1 mi 11.5 km • 768' Up 234.03 m Up • 759' Down 231.27 m Down
Boulder, 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
Marshall Mathers LP
8.4 mi 13.5 km • 705' Up 214.85 m Up • 706' Down 215.04 m Down
Superior, CO
Sugarloaf to Gordon Gulch Loop
13.5 mi 21.7 km • 1,590' Up 484.64 m Up • 1,607' Down 489.88 m Down
Boulder, CO
Sherwood From Nederland
5.8 mi 9.3 km • 789' Up 240.44 m Up • 793' Down 241.57 m Down
Nederland, CO
The Cougar Slayer
69.6 mi 112.0 km • 8,965' Up 2732.51 m Up • 11,815' Down 3601.28 m Down
Nederland, CO
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