Issued prior to the American Civil War and the subsequent Long Island land rush, this is one of the most detailed and attractive large format maps of Long Island to appear in the 19th Century.  Covers from New Jersey and Staten Island eastward as Montauk and Fisher’s Island.  Includes parts of Westchester, New Jersey, Rockland County, and the Connecticut Coast.  A large inset map in the lower right hand quadrant depicts Manhattan with a special focus on geological features and topography.   Shows the partially completed Long Island Railroad as well as smaller roads and towns.  Notes various important Long Island communities including the East Hampton, Bridgehampton, Southampton, Amaganset, Riverhead, and Sag Harbor, among others.  In many cases individual buildings are detailed. The whole is laid out on a grid structure of ten mile squares.  Prepared by W.W. Mather from the survey work of John Calvin Smith.  Engraved by Endicott &amp; Company for part one of Mather’s  Geology of New York .
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1842 (dated)
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