|1854. Adam and Charles Black, publishers. Mexico, California & Texas. Engraved by S. Hall. Edinburgh, A.& C. Black, [1854?]. Colored map 26 x 38 cm. Scale ca. 1:12,000,000. From their General Atlas of the World, 1854?, plate 49. [G4410 1854 B5]. 1135x800 | 866X600|
Black's colorful little map shows the political configuration of the Southwest just prior to the next great milestone: the acquisition by the United States from Mexico in 1854--through the Gadsden Purchase--the portion of today's southern Arizona south of the Gila River. From 1850 to 1863 all the land in the United States between California and Texas was called the Territory of New Mexico and in 1863 the Territory of Arizona was created. The Arizona-Sonora region of Black's map is based on old cartography. The Spanish and Mexicans still had not given Americans and other Europeans access to their more accurate maps.