"Holy Terror" in Keystone

The old "Holy Terror" shack in Keystone, South Dakota.

I found it in the popular town of the Black Hills, right by the Historical Museum that once housed a school. "Holy Terror" wasn't about bringing fear to the old students; it was a gold mine from the 1800s. A miner used to call his bad-tempered wife "holy terror" and the name survived (her real name was Anna, and some say that her ghost still roams through the mine tunnels). Old Keystone always had a thing for ghosts. If you’re a ghostbuster, you may be welcomed there.