Members of a family moving to Tombstone said they aren't concerned by a new sinkhole in the backyard of a home. They're purchasing the home in the historic mining community. A tow truck's winch was used to extract the family's truck from the sinkhole after its left front tire sank when the ground collapsed Friday evening.According to the Sierra Vista Herald , Michael and Mary Berrryman and their son Mikey all said they find the sinkhole an interesting part of Tombstone's history. There's a network of underground mine tunnels underneath Tombstone, and town archivist Nancy Sosa said three mines connect near the new sinkhole. Fire Chief Jeff Fought said the house appears to be structurally sound.