Sketch J No. 7 of "San Diego Entrance and Approaches" from a Trigonometrical
Survey of the United States, depicting sailing directions.
Image ID: cgs05092, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: California, San Diego
Photo Date: 1851
Credit: NARA C&GS Colllection
Category: Coast and Geodetic Survey/Archive Nautical Chart/
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