County Road 83a is a hiking, biking, and horse trail in Greenlee County, Arizona. It is within Apache-Sitgreaves National Forests. It is 3.3 miles long and begins at 7,972 feet altitude. Traveling the entire trail is 6.7 miles with a total elevation gain of 656 feet. The Tadpole Tank (elevation 7,818 feet) reservoir can be seen along the trail.