1842 : Michigan Gains Sugar Island

When:
August 9, 2022 all-day
2022-08-09T00:00:00-04:00
2022-08-10T00:00:00-04:00

Evolution of Michigan’s Legal Boundaries

Sugar Island/St. George’s Island in the St. Mary’s River

The Webster-Ashburton Treaty, signed August 9, 1842, settled a border dispute with Great Britain in which Michigan gained governance over Sugar Island (called St. George’s Island by the Canadians).

Return to Evolution of Michigan’s Legal Boundaries Exhibit courtesy of the MSU Library Map Library

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