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32.6 mi 52.4 km Dirty 30: 50K
Difficult Difficult
Coal Creek, CO
Difficult Difficult
Coal Creek, CO
6.9 mi 11.1 km Mountain Lion Trail
Intermediate/Difficult Intermediate/Difficult
Coal Creek, CO
Intermediate/Difficult Intermediate/Difficult
Coal Creek, CO 77 
17.2 mi 27.7 km Centennial Cone Loop
Intermediate Intermediate
Idaho Springs, CO
Intermediate Intermediate
Idaho Springs, CO 42 
13.3 mi 21.4 km CT - Segment 3: Little Scraggy to FS-560 Wellington Lake Road
Intermediate Intermediate
Pine, CO
Intermediate Intermediate
Pine, CO 19 
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