Unveiling of Boundary Marker Plaque

Several years ago, the Glengarry Historical Society initiated a project to revive interest in, and restore the boundary markers laid out in 1860 delineating the Quebec-Ontario border.  Over the intervening years, many of the markers had been damaged, destroyed, and simply lost in the undergrowth.  With the cooperation of both provincial governments, local municipalities, and members of the Historical Society, the markers were located and, if possible restored.  More information on the project can be found on this website under the menu item ‘ABOUT US’, submenu ‘PROJECTS’.  On June 21, a ceremony will be held recognizing the recovery of the markers defining this historic line.

The Township of South Glengarry would be pleased if you could join us for the unveiling of our Upper Canada / Lower Canada Delineating Plaque. Light snacks will be available.

Event details:

Saturday, June 21, 2014

10:00 AM

Concession Road 8 at the Quebec/Ontario Border




This monument is one of about fifty delineating the land border between the provinces of Québec and Ontario. The line was established in 1791 by the British Constitutional Act, based on the extent of lands granted as seigneuries during the earlier French colonial period. The late 18th century was a time of increasing British immigration to Canada, and the Act divided the colony into the long-established and mostly French-speaking Lower Canada, now Québec, and the fast-growing, mostly English-speaking Upper Canada, now Ontario. Several surveys of the border were done in the first half of the 19th century, including one by the celebrated cartographer David Thompson of nearby Williamstown, Ontario. It was not until 1860 that the border was marked by stone monuments. These were renovated or replaced in a joint Québec-Ontario project in 2011.


Ce monument est l’un des quelque cinquante qui délimitent la frontière terrestre entre les provinces de Québec et d’Ontario. L’Acte constitutionnel de 1791 du Parlement britannique établit la frontière en fonction de l’étendue des concessions de terre, les seigneuries de l’époque de l’ancienne colonisation française. Avec l’accroissement de l’immigration britannique au Canada à la fin du 18e siècle, l’Acte divisa la colonie en deux provinces: le Bas-Canada, reconnu depuis longtemps et surtout francophone, maintenant le Québec, et le Haut-Canada, en pleine croissance et surtout anglophone, maintenant l’Ontario. Au début du 19e siècle, on effectua plusieurs levés topographiques, dont un realisé par le célèbre cartographe David Thompson de Williamstown tout près, en Ontario. Mais, ce n’est qu’en 1860 qu’on marqua la frontière de monuments de pierre. En 2011, un projet collectif Québec-Ontario effectua la rénovation ou le remplacement de ces monuments.