Halfmoon Valley Road is a hiking, biking, and horse trail in Cochise County, Arizona. It is within Coronado National Forest. It is 15.3 miles long and begins at 5,374 feet altitude. Traveling the entire trail is 19.9 miles with a total elevation gain of 1,819 feet. The Riddle Tank (elevation 5,131 feet) reservoir can be seen along the trail.
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