County Road 299 is a hiking, biking, and horse trail in , Colorado. It is within San Isabel National Forest. It is 2.1 miles long and begins at 12,146 feet altitude. Traveling the entire trail is 4.3 miles with a total elevation gain of 1,107 feet. The Stonewall Shaft Mine (elevation 11,319 feet) quarry can be seen along the trail.
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