Roosevelt National Forest, Colorado

Elevation Gain460ft
Trailhead Elevation9,336ft
Elevation Min/Max9323/9644ft
Elevation Start/End9336/9336ft


503 is a hiking, biking, and horse trail in Gilpin County and Boulder County, Colorado. It is within Roosevelt National Forest. It is 1.2 miles long and begins at 9,336 feet altitude. Traveling the entire trail is 2.4 miles with a total elevation gain of 460 feet. The trail ends near the Lone Star Mine (elevation 9,334 feet) quarry. This trail connects with the following: 109 and 105.1.

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Trail Information

Roosevelt National Forest
Nearby City
Roosevelt National Forest

Activity Feed

Dec 2018