The area around the Markle Mill/Old Mill Dam in Terre Haute, Indiana, is associated with hauntings and is considered a real haunted place by Indiana Haunted Houses. Reports include sightings of a ghostly girl on the grounds and the tragic drowning deaths of teenagers on the dam in the late 1960s or early 1970s, with one witness mentioning a possible drowning incident involving two brothers in the early 1970s. The site includes what remains of the original 1816 Markle Mill, including the dam and parts of the foundation. A ghostly girl has been seen on the grounds of the mill. There are accounts of teenagers drowning on the dam, with one source indicating a specific incident in the 1960s or 1970s involving two brothers. The area is also believed to have been part of the Underground Railroad. The area, referred to as Haunted Woods by Indiana Haunted Houses, is open to the public.