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NOAA Photo Library Image - cgs00092

Location of magnetic observatories in United States and Pacific Ocean. San Juan , Cheltenham, Tucson, Sitka, and Honolulu were Coast and Geodetic Survey magnetic and seismological observatories.

Image ID: cgs00092, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1935 Ca.


Category: Geophysics Magnetics/

• High Resolution Photo Available




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Last Updated: April 30, 2013