Line them up, you’ll be heading for port. The Outer and Inner Range lighthouses guided shipping to the entrance of the third Welland Canal at Port Dalhousie until it was replaced by the Welland Ship Canal in 1932. The outer lighthouse – which features in the logo of ACO St Catharines - continues to flash every two seconds but the inner lighthouse was deactivated in 1988. Both lighthouses were designated under the Ontario Heritage Act in 1996 and both are Recognized Federal Buildings.

In order to enhance the appearance and security of the Inner lighthouse, ACO St Catharines, the City of St Catharines, Bronte Construction and the Department of Fisheries and Oceans (DFO) are collaborating to replace chainlink fencing around the inner lighthouse with surplus fencing from St Lawrence Seaway Lock One of the Welland Canal. The same fencing is used at the St Catharines museum.