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![Chart of Half Moon Bay, California cgs05223.jpg Chart of Half Moon Bay, California](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs05223.jpg?itok=9ebMKOTA)
Description
Chart of Half Moon Bay, California. From a Trigonometrical Survey. This chartshows that even though the main activities of the Coast Survey were associatedwith the Civil War effort, a small amount of work was still being conducted onthe West Coast. The triangulation, topography, and hydrography were allconducted by Augustus Rodgers, a brother of RADM John Rodgers, USN. (Image credit: NARA C&GS; Colllection)