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Interesting New England overview chart produced by the U.S. Coast Survey under the supervision of Alexander Dallas Bache. The map, printed in 1852, details the progress of the coastal survey in the northeastern United States, specifically focusing on the region from Narragansett Bay to Portland, Maine, covering Cape Cod, Martha's Vineyard, and Nantucket Island.
The map is notable for its use of triangulation to establish accurate measurements of the coastline, a method depicted by the numerous intersecting lines forming triangles across the map. It includes detailed notes indicating various types of survey stations, such as astronomical, magnetic, and tidal, as well as the lines connecting these stations, distinguishing between primary and secondary lines, and the progress in different surveyed sections.
Hydographical details are represented with high precision, including the limits of subsidiary sheets, the shoreline, lighthouses, hills, rocks, and other significant landmarks. The map also provides a comprehensive key explaining the symbols and lines used throughout, offering a clear understanding of the surveying methods and the level of completion by 1852.
![A New and Exact Map of the Dominions of the King of Great Britain on ye Continent of North America . . . [Beaver map]](https://storage.googleapis.com/raremaps/img/small/101277.jpg)
![[ New York and New Jersey ] Mappa Geographica Provinciae Novae Eboraci ab Anglis New-York… Claudii Josephi Sauthier cui Accedit Nova Jersey ex topgraphicis . . . 1778](https://storage.googleapis.com/raremaps/img/small/103550.jpg)
