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Matthew Nielsen > Trail Favorites List

4.9 mi 7.9 km Green Mountain via Ranger/Saddle Rock Loop
Difficult Difficult
Boulder, CO
Difficult Difficult
Boulder, CO 111 
5.7 mi 9.2 km Bear Peak Out and Back
Difficult Difficult
Boulder, CO
Difficult Difficult
Boulder, CO 150 
0.9 mi 1.5 km Royal Arch Trail
Intermediate/Difficult Intermediate/Difficult
Boulder, CO
Intermediate/Difficult Intermediate/Difficult
Boulder, CO 21 
17.3 mi 27.9 km Boulder Skyline Traverse
Difficult Difficult
Superior, CO
Difficult Difficult
Superior, CO 139 
15.7 mi 25.2 km High Lonesome Loop
Difficult Difficult
Nederland, CO
Difficult Difficult
Nederland, CO 123 
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