Map Showing the Areal Distribution of the Formations of the Potomac Group in Maryland (Plate XXLXa)

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Date
1902
Author
Maryland Geological Survey
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Abstract
Scale 1:500,000. Map is from Maryland Geological Survey, 1902; Volume 4, Plate XXLXa. Size of original printed map height 7.5 inches, width 4.75 inches
URI
http://jhir.library.jhu.edu/handle/1774.2/36291
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