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https://www.noaa.gov/media/digital-library-photo/pl23cgs05315jpgDescription
Color key to the series of unfinished study of Ice Formation along AtlanticCoast. Blue shading indicates Local formation, Pink shading indicates Drifting Ice while purple (blue+pink) shading exhibits Local Formation andDrifting Ice. (Image credit: NARA C&GS; Colllection)
Credit
NARA C&GS; Colllection
Display Date
1848-1874
Collection
Historic Coast & Geodetic Survey
Historic Maps
General
Keywords
Coast and Geodetic Survey
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