Relief shown by hachures. Includes inset map: Mexico and adjacent states, on an enlarged scale. Prime meridian: Greenwich. "Published by R.H. Laurie, Chart-seller and Agent to the Admiralty & c. No. 53, Fleet St., London, August 6th, 1827, Improved Edition: 1830." 1 map: col.; 64 x 98 cm. folded to 23 x 13 cm.