DescriptionUS Coast Survey 1855 Upper Chesapeake Bay Finlay site ANNOTATED.jpg
English: Annotated section of 1855 U.S. Coast Survey map of the Chesapeake Bay in Maryland, showing triangulation survey points used to ascertain the dimensions and shapes of the coastline
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Annotated section of 1855 U.S. Coast Survey map of the upper Chesapeake Bay, Maryland, showing location of Finlay Farm ("Finlay") triangulation point on Old Harford Road, Cub Hill, Maryland; annotations by Stephen Corfidi