This pre-Gadsden Purchase map extends into today's Arizona and New Mexico with the border following the Gila River. Across the top are large insets of "The Isthmus of Tehantepec Showing the Proposed Route from the Gulf of Mexico Sea to the Pacific Ocean," "The Isthmus of Nicaragua Showing the Proposed Routes from the Caribbean Sea to the Pacific Ocean," and "Guatemala or Central America" and inset at bottom left is "Valley of Mexico" with its two large lakes and Mexico City. The map locates and names many Indian Tribes. Early California towns are named including Los Angeles, plus the three missions of San Juan, San Luis Rey and San Diego and the Baja is labeled Lower California.

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Condition: A

Fine original color and good impression. Full, original margins. A little marginal toning, paper fine and supple.