 Sutton Manor was one of the largest pits in the Lancashire Coalfield, the deepest of the two shafts going over into the earth.They were filled in shortly after closure using large diameter limestone, around 30,000 tons from Holme Park Quarry in Carnforth then capped with three-metre thick reinforced concrete plugs over the two shafts, with venting pipes for methane.A tall sculpture, called "Dream," is now sited at Sutton.