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French Claims In North America on the Eve of the French & Indian War

Rare French & Indian War map of the British and French Colonies in North America, published by Le Rouge.

Map includes 2 large inset maps illustrating the French & British Colonies in North America at the beginning of the French & Indian War, the larger of the two insets highlights the French claims extending to just north of the Missouri River, which would put Wisconsin, Minnesota, Northern Illinois, Iowa and the northern half of Missouri within the French Colonial claims, although not the future location of St. Louis.

The primary map shows the British Colonies in North America, extending just beyond the Appalachian Mountains, as well as the Great Lakes and Canada.  The English colonies are outlines in yellow, with the French and Spanish claims in green.  

The large inset map provides an excellent treatment of the Mississippi Valley and Tributaries, extending north to Lake Superior and centered on the confluence of the Mississippi River and the Missouri River. A smaller inset shows most of what was then Georgia and Western Florida, with a smaller inset of Niagara Falls.

States of the Map

  • State 1 - 1755:  Includes only a single color key (to the right of Acadia), with no discussion of the disputed boundaries between the French and English.
  • State 2 - 1755:  Includes a second color key and describes the "pretensions des Anglois", illustrating the regions in dispute between the French and English, as of 1755, with text in both French and German.
Condition Description
Misfolded at left center, affecting the area below the "Oubache" River.
George Louis Le Rouge Biography

George-Louis Le Rouge (1712-1790), though known for his work in Paris, was originally born Georg Ludwig of Hanover, Germany. He grew up and was educated in Hanover, after which he became a surveyor and military engineer. Around 1740, however, Le Rouge moved to Paris and set up shop as an engraver and publisher on the Rue des Grands Augustins. It was at this time that he changed his name, adopting a French pseudonym that would later become quite famous.

Le Rouge spent much of his forty-year career translating various works from English to French, and his cartographic influence often came from English maps. His experience as a surveyor and engineer in Germany made him a skilled and prolific cartographer, and he produced thousands of charts, maps, atlases, and plans. His work spans from garden views and small-town plans to huge, multiple-continent maps. Le Rouge eventually accepted the position of Geographical Engineer for Louid XV, the King of France.

Later in life, Le Rouge became well-known for publishing North American maps, such as in his Atlas ameriquain septentrional of 1778. One of Le Rouge’s other more famous works is the Franklin/Folger chart of the Gulf Stream, which he worked on with Benjamin Franklin. Franklin and Le Rouge corresponded around 1780 and collaborated to create this map, a French version of Franklin’s famous chart which was originally printed in 1769.