This rare ornamental map depicts the United States and Mexico during the Mexican-American War. It shows a small New Mexico Territory situated between the new state of Texas and the disputed area of New California. There is a red line following the Platte, Snake and Columbia Rivers labeled the "Route of Oregon Immigrants." The map is surrounded by an ornamental border including 30 state seals with two columns of statistical information flanking the map. The last dated state is 1846 (Iowa). A similar broadside map measuring 15.3 x 10.5" is noted in Wheat (#514), containing a large text panel below the image discussing the Seat of War.