My wife and myself just got back from a trip to tennessee where we were lucky enough to get a tour of the doe river gorge by mark milbourne. The track only goes for 2.5 miles but what a 2.5 miles. The closest other train ride that gives you the type of scenery is the durango& silverton. Plus mark gives you a personal tour. This is a must see trip.We rode on a open air speeder. Here are a few pictures of our ride. The pictures do not show the beauty of the area.