In the late 1970's a young man and his father went searching for the source of strange and loud howls and growls. The father locked his son in a truck and set off with a recorder to find the noises. The young man later recounted his experiences at the property which included heavy logs being thrown near him, large objects inexplicably moved and the sound of something big banging on the side of a garage. This recording was taken from an old recorder and every attempt was made to keep it as close to the original recording as possible.
Full BFRO report: (Link: bfro.net)