In June 1747, concerned about the incursion and expanding influence of British traders such as George Croghan in the Ohio Country, Roland-Michel Barrin de La Galissonière, the Governor-General of New France, ordered Pierre-Joseph Céloron to lead a military expedition through the area. Its objectives were to confirm the original French claim to the territory, determine the level of British influence, and impress the Indians with a French show of force.
Céloron's expedition force consisted of about 200 Troupes de la marine and 30 Indians. The expedition covered about 3,000 miles (4,800 km) between June and November 1749. It went up the St. Lawrence, continued along the northern shore of Lake Ontario, crossed the portage at Niagara, and then followed the southern shore of Lake Erie. At the Chautauqua Portage (near present-day Barcelona, New York), the expedition moved inland to the Allegheny River, which it followed to the site of present-day Pittsburgh. There Céloron buried lead plates engraved with the French claim to the Ohio Country. Whenever he encountered British merchants or fur-traders, Céloron informed them of the French claims on the territory and told them to leave.
Céloron's expedition force consisted of about 200 Troupes de la marine and 30 Indians. The expedition covered about 3,000 miles (4,800 km) between June and November 1749. It went up the St. Lawrence, continued along the northern shore of Lake Ontario, crossed the portage at Niagara, and then followed the southern shore of Lake Erie. At the Chautauqua Portage (near present-day Barcelona, New York), the expedition moved inland to the Allegheny River, which it followed to the site of present-day Pittsburgh. There Céloron buried lead plates engraved with the French claim to the Ohio Country. Whenever he encountered British merchants or fur-traders, Céloron informed them of the French claims on the territory and told them to leave.
