Map originally on 4 sheets. Boston Public Library copy assembled, dissected and mounted on cloth.
Relief shown by hachures.
Prime meridian: Mexico City.
"Engraved by B.R. Davies, 16 George Str. Euston Squ., London. From the original survey made by order of the Mexican Government."
"Esta edicion se hace provicionalmente mientras se concluye la Carta en Escala mayor."