Collin Sinclair > Trail Favorites List

3.2 mi 5.2 km Mount Sanitas Loop Intermediate/Difficult Boulder, CO	Intermediate/Difficult	Boulder, CO	127
8.0 mi 12.9 km Walker Ranch Intermediate/Difficult Coal Creek, CO	Intermediate/Difficult	Coal Creek, CO	159
4.9 mi 7.9 km Green Mountain via Ranger/Saddle Rock Loop Difficult Boulder, CO	Difficult	Boulder, CO	114
3.4 mi 5.5 km Royal Arch Out and Back Difficult Boulder, CO	Difficult	Boulder, CO	178

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