1 map: black and white; Vertical axis of map oriented, from top to bottom, east to west; Relief shown pictorially; Map of the extinct lakes Texcoco, Chalco, Xaltocan, and Zampango: only Lakes Texcoco and Chalco are named; Published as a foldout plate in Francesco Saverio Clavigero's Storia antica del Messico, 1780-1781, volume 3, facing page 3. Scale approximately 1:38500 (W 99°14'51"-W 98°50'45"/N 19°49'58"-N 19°14'13").