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Township of Rideau Lakes in Leeds and Grenville United Counties, Ontario — Central Canada (North America)
 

The Enemy to the South
⎯⎯⎯
l'Ennemi du Sud

 
 
The Enemy to the South Marker image. Click for full size.
Photographed by William Fischer, Jr., October 7, 2022
1. The Enemy to the South Marker
Inscription.  

The War of 1812 had shown that a successful defence of Canada against an American attack depended upon secure supply lines. The Rideau Canal was built as an alternate to the easily attacked St. Lawrence supply route. Blockhouses were chosen as a means of defending the canal works. Lt. Col. John By. R.E., the Superintending Engineer during construction had planned Blockhouses for all lockstations. However, he was recalled to England to explain soaring construction costs and only four were finished.

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La Guerre de 1812 avait bien démontré que l'efficacité de la défense contre les attaques américaines au Canada dépendait d'un réseau d'approvisionnement sûr. Le canal Rideau fût construit afin de remplacer la voie d'approvisionnement du St-Laurent, qui pouvait facilement tomber entre les mains des ennemis. On eut recours à des blockhaus comme ouvrages de défense. Le lieutenant-colonel John By, membre des Royal Engineers et ingénieur en chef de la construction, avait prévu l'aménagement de blockhaus à tous les postes d'éclusage. Il dut toutefois retourner en Angleterre
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afin d'expliquer la raison des coûts exorbitants de construction. Quatre blockhaus seulement furent achevés.
 
Erected by Parks/Parcs Canada.
 
Topics. This historical marker is listed in these topic lists: Forts and CastlesWar of 1812Waterways & Vessels. A significant historical year for this entry is 1812.
 
Location. 44° 42.172′ N, 76° 17.721′ W. Marker is in Township of Rideau Lakes, Ontario, in Leeds and Grenville United Counties. It is on Narrows Lock Road (County Highway 14) close to the Rideau Canal, on the right when traveling north. Marker is at Lock 35 on the Rideau Canal. Touch for map. Marker is in this post office area: Township of Rideau Lakes ON K0G 1V0, Canada. Touch for directions.

Regionally, this marker is in Eastern Ontario and specifically in Southeastern 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 6 kilometers of this marker, measured as the crow flies: Rivers, Lakes and Locks / Rivières, Lacs et Écluses (here, next to this marker); Two Lakes from One / d'Une Pierre Deux Coups (here, next to this marker); Narrows (a few steps from this marker); Blockhaus de Narrows Blockhouse (a few steps from this marker); St. Mary's Anglican Church (approx. 5.9 kilometers away); Crosby Methodist Church Bell (approx. 6.5 kilometers away); Blanche A. Thompson Leggett (approx. 6.5 kilometers away); The Methodist New Connection Church (approx. 6.5 kilometers away). Touch for a list and map of all markers in Township of Rideau Lakes.
 
Also see . . .
The Enemy to the South Marker image. Click for full size.
Photographed by William Fischer, Jr., October 7, 2022
2. The Enemy to the South Marker
 History of the Rideau Canal. (Submitted on October 12, 2022, by William Fischer, Jr. of Reynoldsburg, Ohio.)
 
 
Credits. This page was last revised on October 12, 2022. It was originally submitted on October 12, 2022, by William Fischer, Jr. of Reynoldsburg, Ohio. This page has been viewed 157 times since then and 9 times this year. Photos:   1, 2. submitted on October 12, 2022, by William Fischer, Jr. of Reynoldsburg, Ohio.
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Jun. 3, 2026