Blowup view of Minot's Ledge Light, from Massachusettes Bay survey map.
Fixed Height of Focal plane above mean high water, 84ft 7m.
Image ID: cgs05189, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Massachusetts, Boston Harbor
Photo Date: 1861
Credit: NARA C&GS Colllection
Category: Coast and Geodetic Survey/Archive/
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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April 30, 2013