“A fun quick technical ascent into West Mag, or a gnarly little descent, depending on your direction. ”
0.9
Miles1.5
KMSingletrack
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: USFS - Boulder Ranger District Office
69.6 mi 112.0 km • 8,965' Up 2732.51 m Up • 11,815' Down 3601.28 m Down
18.1 mi 29.1 km • 2,135' Up 650.8 m Up • 2,136' Down 650.93 m Down
5.8 mi 9.3 km • 789' Up 240.44 m Up • 793' Down 241.57 m Down
10.3 mi 16.6 km • 825' Up 251.57 m Up • 825' Down 251.49 m Down
16.9 mi 27.1 km • 2,451' Up 746.95 m Up • 2,447' Down 745.8 m Down
5.5 mi 8.9 km • 1,012' Up 308.52 m Up • 1,013' Down 308.82 m Down
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