 It is thought to be Europe's last steam operated winch and it is contained within a railway-style winch house that is category A listed.The complex includes a slipway, carriage, boiler, steam engine and hauling gear and winch house.The slipway construction started in 1900 and it was opened by the Dunbarton & Balloch Joint Line Committee in 1902 and finally fell out of use circa 1989.