Well engraved map of the continent showing the latest discoveries in the western parts of Canada and United States including those of Mackenzie, Hearne, and Lewis & Clark. The most prominent feature on the map is the mountains of the Continental Divide labeled Rocky Mountains. Many Indian tribes are named including Snake, Plume, Red, Blue, Wolf, and Beaver. Filled with notations throughout including references to Captain Lewis. The intermountain region is completely blank. A fascinating map that deserves more study.

References: Phillips (A) #731, 751, 3545; Wheat (TMW) #319.

Condition: A

Nice, dark impression with fine color on a full sheet of thick paper. Lightly toned along centerfold, else very good.