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pl23_theb1748.jpg

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https://www.noaa.gov/media/digital-library-photo/pl23theb1748jpg

Description

Francis X. Popper taking sight with alidade.Plane table work on the Sacramento River Delta

Credit

Captain Francis X. Popper, C&GS;

Display Date

9-Jan-41

Location

Sacramento River Delta, California

Collection

Historic Coast & Geodetic Survey

Geodesy

Topography-Mapping the Shoreline

Plane Table Mapping

Keywords

Topography

Plane Table