Old Blacktop Road is a hiking, biking, and horse trail in Prince William County, Virginia. It is within Prince William Forest Park. It is 1.6 miles long and begins at 266 feet altitude. Traveling the entire trail is 3.2 miles with a total elevation gain of 281 feet. Near the trailhead there are a vending machine, a water tower, parking, restrooms, drinking waters, and a shelter.
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