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Perry Trowbridge > Trail Favorites List

47.5 mi 76.5 km Rim-to-Rim-to-Rim (R2R2R)
Difficult
Grand Canyon, AZ
Difficult
Grand Canyon, AZ 68 
34.1 mi 54.9 km Yamacraw 50K
Difficult
Whitley City, KY
Difficult
Whitley City, KY