The French Portage
This 3.2 km portage around rapids in the nearby French River was among the most difficult on the Kaministiquia canoe route to the west, first recorded in 1688 by Jacques de Noyon and later used extensively by French and British fur traders. After 1867, following recommendations based on S.J. Dawson's survey of 1857-59, the government improved the route for westbound settlers and for military purposes. Tugs and barges were provided on navigable waters, and horse-drawn transport on some portages. Improved for wagon traffic, 1871-72, and equipped with storehouses and shelters, 1873-74, the French Portage became a way-station on the "Dawson Route" which, owing in part to competition from American railroads, was abandoned by 1879.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.