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pl23_cgs05102.jpg

A loose hand-written note stating Soundings are referred to mean low water asa plane of reference & are expressed in feet

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23cgs05102jpg

Description

A loose hand-written note stating Soundings are referred to mean low water asa plane of reference & are expressed in feet .... A statement of the verticaldatum used for charting in the compilation of nautical charts at the time thenote was written.

Credit

NARA C&GS; Colllection

Display Date

1851 ca.

Collection

Historic Coast & Geodetic Survey

Historic Maps

General

Keywords

Coast and Geodetic Survey

Archive Tides