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Stony Brook University

Maps: Long Island Maps

Contains resources for maps and geospatial research and instruction

Browsing the US Coast Survey Maps of Long Island

Popular Maps for Long Island Research

To view Long Island Maps Most Frequently Used for Historical Research visit the “Popular Maps for Research” subpage under the “Finding Maps” tab.

  Note: NYS Pathfinder

The NYS Map Pathfinder is a top-level web page in this subject guide that links to digital images of historical maps.

Ferdinand Hassler

The U.S. Coast & Geodetic Survey began in 1807 when President Thomas Jefferson hand-picked Ferdinand Hassler as its first superintendent. Hassler’s fastidious expertise in geodetic and triangulation survey techniques were originally intended to guide mariners in and out of New York harbor. He confidently recognized its centrality and grounded the zero longitudinal baselines there. 

Before his reassignment to the U.S. Coast Survey in 1832, he served as Head of National Standards of Weights and Measures. Although he did not resume command of the U.S. Coast Survey until the latter part of his career, it is perhaps his greatest accomplishment.