At Sault Sainte Marie in 1671, before representatives of fourteen Indian nations, the Sieur de St Lusson read a proclamation asserting the French claim to all the territory in the region of the 'Great Lakes.
The freight carried into and out of the lake, as gauged by the statistics gathered at the Sault Canal offices, aggregated in 1907 over 58,000,000 (short) tons.
Here he worked at Sault Ste Marie, St Esprit (near the western extremity of Lake Superior) and St Ignace (near Michilimackinac or Mackinaw, on the strait between Huron and Michigan).
In 1639 he went among the Tobacco Nation, and in 1641 journeyed to Sault Sainte Marie, where he preached to the Algonquins.
The St Lawrence system, for instance, generates many thousand horse-power at Sault Ste Marie, Niagara and the Lachine rapids.
Two Jesuits, Raymbault and Jogues, visited the site of Sault Sainte Marie as early as 1641 for the conversion of the Chippewas; in 1668 Marquette founded there the first permanent settlement within the state; three years later he had founded a mission among the Hurons at Michilimackinac; La Salle built a fort at the mouth of the Saint Joseph in 1679; and in 1701 Cadillac founded Detroit as an important point for the French control of the fur trade.