I just bought a 140 yr old farmhouse in Ann Arbor, Michigan. Right outside in front of the barn is a 18" square "lid" that lifts up and underground is a 12 foot x 12 foot concrete room that has a drop of about 10-15 feet. You would need some type of ladder to get down. Above ground is the only access to this room. I was told that this area used to be a throughway for the Underground Railroad. I tend to think maybe it was a panic room during Prohibition. Any thoughts? I haven't been able to find any imformation about the house from the library.I'm going to try to take pictures of it and post them. I have no idea when the barn was built.One of the walls in the room is the wall of the barn's bottom floor. (the barn sits on a hill- and the bottom level entrance is in the back only)
I appreciate any input.