Easy/Intermediate
3.3 (11)
Local Club: Boulder Mountainbike Alliance
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Aug 24, 2026: From the Bike Ban to South Sky: 43 Years in the Making
Broomfield Trail and Coal Creek Trail loop
19.7 mi 31.7 km • 449' Up 136.77 m Up • 452' Down 137.66 m Down
Erie, CO
Rock Creek Farm Loop
11.8 mi 18.9 km • 301' Up 91.78 m Up • 305' Down 93.04 m Down
Broomfield, 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
North Boulder Loop
8.3 mi 13.4 km • 372' Up 113.47 m Up • 371' Down 113.22 m Down
Boulder, CO
Betasso Preserve
7.1 mi 11.5 km • 768' Up 234.03 m Up • 759' Down 231.27 m Down
Boulder, CO
Marshall Mesa - Doudy Draw Loops
10.4 mi 16.8 km • 921' Up 280.63 m Up • 923' Down 281.18 m Down
Superior, CO
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