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7.6 mi 12.2 km Heil Ranch
Intermediate Intermediate
Lyons, CO
Intermediate Intermediate
Lyons, CO 219 
12.6 mi 20.2 km Spring Brook Loop
Intermediate Intermediate
Superior, CO
Intermediate Intermediate
Superior, CO 143 
7.5 mi 12.0 km North Table Loop
Intermediate Intermediate
Golden, CO
Intermediate Intermediate
Golden, CO 331 
7.1 mi 11.5 km Betasso Preserve
Intermediate Intermediate
Boulder, CO
Intermediate Intermediate
Boulder, CO 363 
17.2 mi 27.7 km Centennial Cone
Intermediate Intermediate
Idaho Springs, CO
Intermediate Intermediate
Idaho Springs, CO 444 
16.3 mi 26.2 km Super Betasso
Intermediate/Difficult Intermediate/Difficult
Boulder, CO
Intermediate/Difficult Intermediate/Difficult
Boulder, CO 76 
10.4 mi 16.8 km Marshall Mesa - Doudy Draw Loops
Intermediate Intermediate
Superior, CO
Intermediate Intermediate
Superior, CO 130 
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