A great mid-nineteenth century map issued shortly after the Mexican War and reflecting incomplete knowledge of the border between the United States and Mexico. The Southwest still shows the Mexican states of Upper California, New Mexico and Texas, but the U.S./Mexican boundary along the Gila River is shown in a light, incomplete wash outline. The map is filled with interesting detail of Indian tribes, exploration and travel routes. There are large Missouri and Arkansas territories in the West and Midwest, and the entire Pacific Northwest is labeled District de Columbia. The map is surrounded with a bold keyboard style border. Engraved by Pierre Tardieu.

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Condition: A

Very nice example with original color, fine impression and very wide margins. Very light area of toning in lower border below title.