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 Defiance (Ohio) had agreed not to settle. Until the War of 1812, Fort Defiance was one of the westernmost outposts in Ohio. William Henry Harrison used it as one base for his attacks against Native Americans during Tecumseh's War, and the fort played a role in the War of 1812 as well. The city of Defiance, Ohio, was founded at the fort's location. In 1904, the site of the fort was chosen for the Defiance Public Library. Fort Defiance served as a reference point for defining the boundary line of land cession in the Treaty of Detroit in 1807. This north-south line