Mowlam's Quarry was a quarry owned by Harry Mowlam until 1985. Harry Mowlam was a nasty man who did shady deals. He allowed his abused dog Ben to stay on the quarry during work hours, among the loud noises of the controlled explosions. In October 1985, Harry supplied the gelignite for a robbery on Home Farm involving Derek Warner and Keith Johnson. Harry then sold his quarry and went into farming.