In 1890, the Louisville & Nashville railway (L&N) pushed two tunnels through outcroppings of Stone Mountain between Appalachia and Big Stone Gap while creating its Cumberland Valley Division. This one, closest to Appalachia at 36.895712, -82.787822, is Bee Rock.
This is the view from the Appalachia side. The tracks are still in place, but they haven’t seen a train since around 1986. Bee Rock, at 47′ 7″ in length, enjoyed a brief fame as the “Shortest Railroad Tunnel in Use in the United States”, according to Ripley’s Believe it or Not. Soon (oops!), someone noticed that there was a tunnel a foot or so shorter over near Gallatin TN and that was that.
The plans are, I believe, to turn this old railbed from Appalachia to Big Stone Gap into a trail for walking and biking. I hope so. I’ve walked it a couple of times. It’s very enjoyable, but, then, I’m easy. I’ve walked a lot worse rail lines, for sure.