Remarkable large format map of Long Island and Staten Island, with contiguous parts of Manhattan, Westchester County and Southern Connecticut, published by WW Mather in connection with his important work on the geology of the region.

Published prior to the explosive growth on Long Island, Mather's map extends 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.

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, Amagansett, Riverhead, and Sag Harbor among others. In many cases individual buildings are detailed.

The first large format geological map of the region and an essential map for Long Island collectors.