Relief shown by hachures, spot heights, and by profile.
Shows railroads, proposed canals or water communications, common roads, gold and silver mines, major cities and towns.
Includes text notes, legend, and 5 topographical cross sections.
"Entered according to Act of Congress in the year 1850 by J. Disturnell in the Clerks Office of the District Court of the Southern District of New York."
Insets: Map of the Isthmus of Tehuantepec in the Republic of Mexico reduced from the original by order of Dn. José de Garay -- Isthmus of Panama -- Plan of the mouth of the river Coatzacoalcos--A vertical projection upon a plan perpendicular to the meridian--Section 1, across the Isthmus of Tehuantepec--Section 2, from Port St. Juan del Norte to Port Realejo--Section 3, from the Lake Nicaragua to Port San Juan del Sur--Section 4, between Chagres (Atlantic) & Vaca de Monte (Pacific).
In lower left margin: Lith. of Sarony and Major, 117 Fulton St., N. York.