The Canadian province of Ontario has a tremendous width east to west, including the entire Canadian side of the Great Lakes. Across this vast area there were once about 250 lighthouses. More than 130 remain, a large percentage of them active. This page lists the lighthouses in the southeastern part of the province including the Ottawa and upper St. Lawrence Rivers. Lighthouses of Lake Ontario are listed on the Southern Ontario page. Aids to navigation in Canada are maintained by the Canadian Coast Guard. In 2008, Parliament passed the Heritage Lighthouse Protection Act to designate and protect historic lighthouses. In 2010, the Coast Guard declared the great majority of lighthouses to be surplus, and there is fear that this may lead to the disposal and possible destruction of many lighthouses. This fear is particularly acute in more remote areas, where the lighthouses do not enjoy the support of local preservation groups. In fact, dozens of lighthouses have already been lost in this region. A note: this page has been greatly improved by the comments and corrections of Michel Forand. ARLHS numbers are from the ARLHS World List of Lights. CCG numbers are from the Inland Waters volume of the List of Lights, Buoys, and Fog Signals of Fisheries and Oceans Canada. For lights of the St. Lawrence Seaway Admiralty numbers are from Volume H of the Admiralty List of Lights & Fog Signals and U.S. NGA numbers are from Publication 110. For lights near the international border USCG numbers are from volume 7 of the U.S. Coast Guard Light List.
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Ottawa River Lighthouses (see also Western Québec)
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![]() Sand Point Light, Sand Point, August 2013 ex-Panoramio Creative Commons photo by cisko66 |
St. Lawrence River Lighthouses (see also Upstate New York)
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![]() Third Crab Sector Light, Cornwall photo copyright Michael Boucher; used by permission |
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![]() Dickinson Landing Light, Upper Canada Village, July 2008 Flickr photo copyright Krista; used by permission |
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![]() Doran Shoal Range Rear Light, Riverside Heights photo copyright Michael Boucher; used by permission |
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![]() De Watteville Island Range Rear Light, Brockville photo copyright Michael Boucher; used by permission |
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![]() Gananoque Harbour Light, Gananoque photo copyright Michael Boucher; used by permission |
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![]() Nine Mile Point Light, Simcoe Island, September 2009 Flickr photo copyright Christopher Howitt; used by permission |
Information available on lost lighthouses:
Notable faux lighthouses:
Return to the Lighthouse Directory index | Ratings key
Posted December 16, 2003. Checked and revised August 1, 2019. Lighthouses: 42. Site copyright 2019 Russ Rowlett and the University of North Carolina at Chapel Hill.