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Intermediate
“A rutted and rocky doubletrack connecting Magnolia Drive to the Dot Trails. ”
1.2
Miles2.0
KMDoubletrack
Intermediate
Doubletrack
Intermediate
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 - Arapaho National Forests - Clear Creek Ranger District
The N Bus Loop
13.0 mi 21.0 km • 1,490' Up 454.13 m Up • 1,489' Down 453.83 m Down
Nederland, CO
West Mag to Eldora and Back
18.1 mi 29.1 km • 2,135' Up 650.8 m Up • 2,136' Down 650.93 m Down
Nederland, 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
Blue Grouse - Mule Deer Loop
10.9 mi 17.5 km • 1,495' Up 455.7 m Up • 1,492' Down 454.78 m Down
Central…, CO
Dirty Bismark
15.7 mi 25.2 km • 933' Up 284.36 m Up • 929' Down 283.21 m Down
Superior, CO
Ceran St. Vrain to Miller Rock
6.2 mi 9.9 km • 897' Up 273.36 m Up • 897' Down 273.36 m Down
Nederland, CO
Unknown
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