Once a coal-mining town, Moonville once boasted a railroad running through it. The Moonville Tunnel is a remnant of those days in the mid 1800s. It's surrounded by a dense forest although the tunnel is accessible via a trail. It's not advised to stray off the trail - the forest is thick with brambles and poison ivy. Also not a good idea - don't stay past twilight. The tunnel and ghost town is rumored to be haunted.