Saint-Pierre returned to Fort La Reine to overwinter, in the spring of 1752 was recalled to Canada by the new Governor General the Marquis Duquesne, and died in combat in 1755.
In a 1757 address Louis Antoine de Bougainville, Montcalm's aide-de-camp during the Seven Years' War, listed all of the French "Western Sea" outposts at the time: Saint-Pierre, Saint-Charles, La Reine, Dauphin, Bourbon, Paskoya and des Prairies.
[5]: 529 After the war Guy Carleton, Governor of Quebec, wrote a letter to Lord Shelburne on 2 March 1768 describing the reach of French fur trade commerce as of 1754.
[5]: 531 The map created by the North West Company's Peter Pond in 1785 marked a spot below the forks of the Saskatchewan with the note "This is the highest point the French Traders possessed".
[5]: 530 British free trader Thomas Curry, determined to find the extent of the territory explored by the French, ventured from Michilimackinac to Fort Bourbon in 1767 and returned the following spring with four canoes full of the finest pelts.
On the other hand geologist Joseph Tyrrell speculated in his 1886 report on the natural history of Alberta to Alfred R. C. Selwyn, director of the Geological Survey of Canada, that it was more likely that Niverville's men would have ascended the North Saskatchewan instead of the south because the Cree that inhabited the territory along the northern branch had been known to the French prior and were on friendly terms, whereas the Blackfoot to the south "were always understood to be very fierce and hostile".
[8] Historian Arthur S. Morton's research concluded that it was "... beyond reason that Saint-Pierre should leave Fort La Reine, at Portage la Prairie, on 14th November, with the blizzards of winter ready to break upon the treeless plains, to travel on foot across unknown territory and among tribes till recently bitterly hostile to one another, a distance of some five hundred and fifty miles.