“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
13.8 mi 22.2 km • 1,075' Up 327.67 m Up • 1,074' Down 327.27 m Down
13.1 mi 21.1 km • 1,356' Up 413.44 m Up • 1,360' Down 414.48 m Down
18.1 mi 29.1 km • 2,135' Up 650.8 m Up • 2,136' Down 650.93 m Down
4.6 mi 7.4 km • 253' Up 77.21 m Up • 255' Down 77.66 m Down
5.5 mi 8.9 km • 1,012' Up 308.52 m Up • 1,013' Down 308.82 m Down
5.1 mi 8.2 km • 648' Up 197.54 m Up • 647' Down 197.31 m Down
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