Iroquois in South Dundas in Stormont Dundas and Glengarry United Counties, Ontario — Central Canada (North America)

The St. Lawrence Seaway

La Voie Maritime du Saint-Laurent

Photographed by Kevin Craft, October 6, 2026

1. The St. Lawrence Seaway Marker

Inscription.
{English text}
The St. Lawrence Seaway was inaugurated by Her Majesty Queen Elizabeth II and the President of the United States of America, Dwight D. Eisenhower, on June 26, 1959. The Seaway has opened up the industrial Great Lakes Region of North America to the trading nations of the world, and it has provided an improved navigation for the transportation of Canadian goods to consuming countries.

{French text}
C'est le 26 juillet 1959 que la reine Elizabeth II et le président des États-Unis d'Amérique. M. Dwight D. Eisenhower, ont inauguré la voie maritime du Saint-Laurent. Cette voie a ouvert la région industrielle des Grands Lacs aux nations commerçantes du monde, et elle a amélioré le transport maritime de marchandises canadiennes vers les pays importateurs.

Erected by Canadian Canal Society in co-operation with the St. Lawrence Seaway Authority and the Ministry of Citizenship and Culture of Ontario.

Topics. This historical marker is listed in these topic lists: Industry & Commerce • Waterways & Vessels. A significant historical date for this entry is June 26, 1959.

Location. 44° 49.879′ N, 75° 18.842′ W. Marker is in South

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Dundas, Ontario, in Stormont Dundas and Glengarry United Counties. It is in Iroquois. It is on Carman Road 0.7 kilometers south of Boat House Road, on the right when traveling south. Marker is located adjacent the parking lot of the Iroquois Lock for the St. Lawrence Seaway. Touch for map. Marker is in this post office area: South Dundas ON K0E 1K0, Canada. Touch for directions.

Regionally, this marker is in Eastern Ontario.

It is also in Central Canada.

Globally, it is in North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once a British colony,

the Viceroyalty of New France,

the Haudenosaunee (Iroquois) Confederacy,

and Rupert’s Land.

Other nearby markers. At least 8 other markers are within 8 kilometers of this marker, measured as the crow flies: The Construction of the St. Lawrence Seaway (here, next to this marker); Fort Needless / Le Fort Inutile (a few steps from this marker); 1st Regiment of Dundas Militia / 1er Régiment de la milice de Dundas (a few steps from this marker); Capturing Point Iroquois / Prise de la Pointe des Iroquois (a few

Wideview of The St. Lawrence Seaway Marker image. Click for full size.

Photographed by Kevin Craft, October 6, 2026

2. Wideview of The St. Lawrence Seaway Marker

steps from this marker); Toussaint Island Ambush / Embuscade de l'Île Toussaint (a few steps from this marker); Trooper Lorne Mulloy (about 90 meters away, measured in a direct line); St. Paul's Church (approx. 5.1 kilometers away); Canals, Rivers and Seaways - Cardinal's History Explored (approx. 7.1 kilometers away). Touch for a list and map of all markers in South Dundas.

Regarding The St. Lawrence Seaway. While the drop from Lake Ontario to the St. Lawrence river is over 200 ft., the Iroquois lock only drops ships a whopping 12 inches before they proceed on their journey.

Also see . . . Wikipedia - St. Lawrence Seaway. (Submitted on October 21, 2026, by Kevin Craft of Bedford, Quebec.)

View from the parking lot of ship passing through the lock image. Click for full size.

Photographed by Kevin Craft, October 6, 2026

3. View from the parking lot of ship passing through the lock

Credits. This page was last revised on October 21, 2026. It was originally submitted on October 21, 2026, by Kevin Craft of Bedford, Quebec. This page has been viewed 15 times since then. Photos: 1, 2, 3. submitted on October 21, 2026, by Kevin Craft of Bedford, Quebec.