We've stayed at Natural Tunnel State Park and Jessie Lea in Big Stone Gap. Both are wonderful campgrounds. Natural Tunnel is a gorgeous state park with electric/water hook ups and the sites in the Lover's Leap section are large. The road leading to the campground out of Kingsport, TN rt23 is 4 lanes and a good drive. Natural Tunnel is closer to the Tennessee state line than Jessie Lea. Natural Tunnel has lots of trails for hiking, a chairlift that takes you to the base of the tunnel, or you can hike down to it and a large pool with slides and diving boards that my kids enjoyed. Jessie Lea had its good points too, it was located on a nice creek, the sites were electric/water/sewer, the bathrooms were the cleanest we've ever experienced. Jessie Lea had the friendliest owner and there was this great porch area outside of the office with picnic tables and rocking chairs for hanging out. I would highly recommend either of these.