Michigan Territory Michilimackinac, then Detroit; this was essentially a military regime that reported to the governor-general at Quebec. Its role was to supply the needs of the fur traders and discourage any settlements not directly supportive of that effort. After the surrender of Montreal in 1760, British troops under Robert Rogers occupied Detroit and its dependent posts. In 1763, Pontiac's Rebellion saw the fall of Fort Michilimackinac to the northern tribes, and a lengthy siege of Fort Detroit. The siege was lifted in 1764, and rule under a British lieutenant-governor at Detroit followed soon thereafter. Due to the Quebec Act of 1774,
Fort Detroit for Fort Pontchartrain is located at the southwest corner of the Crowne Plaza, at Jefferson Ave. and Washington Blvd. Fort Detroit Fort Pontchartrain du Détroit or Fort Detroit was a fort established on the west bank of the Detroit River by the French officer Antoine de la Mothe Cadillac in 1701. In the 18th century, French colonial settlements developed on both sides of the river, based on the fur trade, missions and farms. The site of the former fort, north of the Rouge River, is now within the city of Detroit in the U.S. state of Michigan, an area bounded