“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
18.1 mi 29.1 km • 2,135' Up 650.8 m Up • 2,136' Down 650.93 m Down
26.7 mi 43.0 km • 2,883' Up 878.83 m Up • 2,899' Down 883.5 m Down
5.4 mi 8.7 km • 641' Up 195.34 m Up • 650' Down 198.23 m Down
7.8 mi 12.6 km • 829' Up 252.55 m Up • 828' Down 252.5 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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