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![Announcement of the opening of the San Juan Geophysical Observatory cgs02251.jpg Announcement of the opening of the San Juan Geophysical Observatory](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02251.jpg?itok=E1HGBRSQ)
Description
Announcement of the opening of the San Juan Geophysical Observatory. This wasa new observatory as the C&GS; had operated an observatory in Puerto Ricosince 1903. (Image credit: Family of Captain Miller J. Tonkel, NOAA Corps)
Credit
Family of Captain Miller J. Tonkel, NOAA Corps
Display Date
1965
Collection
Historic Coast & Geodetic Survey
Keywords
Coast and Geodetic Survey
Geophysics Geomagnetism