This substantial 38 miles trail in Harlan and Letcher Counties runs between Harlan and Whitesburg, KY, and passes Kingdom Come State Park. The scenic mountaintop road is used by hikers, horseback riders, cars, and four-wheel-drive enthusiasts. A developed campground is available at Kingdom Come State Park, located part-way along.
http://www.pinemountaintrail.com/trail-information
http://www.harlancountytrails.com/littleshepherdtrail.php