David Finkbiner > Trail Favorites List

47.5 mi 76.5 km Rim-to-Rim-to-Rim (R2R2R) Difficult Grand Canyon, AZ	Difficult	Grand Canyon, AZ	85
17.3 mi 27.9 km Boulder Skyline Traverse Difficult Superior, CO	Difficult	Superior, CO	139
3.6 mi 5.8 km Long Lake Loop Intermediate Nederland, CO	Intermediate	Nederland, CO	27
12.2 mi 19.6 km Chicago Lakes Trail #52 Intermediate/Difficult Georgetown, CO	Intermediate/Difficult	Georgetown, CO	48

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