This map shows the region that was disputed between the United States and Canada prior to the border being established with the Webster-Ashburton Treaty of 1842. This is a copy of a section of John Mitchell's famous map that was used during the 1783 Treaty of Paris. That treaty did not clearly determine the boundary leaving a contested area of the Saint John River valley and its tributaries. In 1838-39 a confrontation, known as the Arroostook War, broke out between the United States and Great Britain. The dispute resulted in a mutually accepted border between the state of Maine and the provinces of New Brunswick and Quebec. The final treaty gave Maine most of the disputed area, and gave the British a militarily vital connection between Quebec and Nova Scotia by way of the Halifax Road.

The map is accompanied by the 74 pp. ""A Memoir on the North-Eastern Boundary, in Connection with Mr Jay's Map......" by Albert Gallatin, President of the New York Historical Society and a Commissioner under the Treaty of Ghent.

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Condition: B+

Condition code is for the map which is very good with a binding trim at right and a short binding tear that just passes the neatline with a few tiny fold separations all closed on verso with archival tape. The text is good with damp stains along the bottom and fore-edge throughout. Paper wrappers are heavily chipped and detached.