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Piedmont 1895
(1898)
Map Showing the Distribution of the Silurian Formations of Maryland
(Baltimore: Maryland Geological Survey, 1922)
Scale 1:190,080. Map is from Maryland Geological Survey, 1922; Systematic Report, Silurian, Plate I. Size of original printed map height 19.25 inches, width 8.00 inches.
Map Showing the Distribution of the Pliocene and Pleistocene Formations of Maryland
(Baltimore: Maryland Geological Survey, 1906)
Scale 1:500,000. Size of original printed map height 20.75 inches, width 20 inches.
Road map of Maryland showing connections with principal points in adjoining states
(Baltimore : Copyright by A. Hoen & Co., 1937)
Map Showing Locations of Wells and Test Holes in Cecil County
(Baltimore: Maryland Geological Survey, 1984)
This map is Plate 2-2 from Bachman, L.J., and Wilson, J.M., “The Columbia Aquifer of the Eastern Shore of Maryland”. Baltimore: Maryland Geological Survey, 1984 (Report of Investigations No. 40).
Map Showing the Distribution of gravel and sand deposits of southeast and south of Washington DC
(Washington: U.S. Geological Survey, 1938)
Scale 1:62,500. Map is from U.S. Geological Survey, 1938; Bulletin 906, Plate 10. Size of original printed map height 25.25 inches, width 24.25 inches.
Map Showing the Distribution of gravel and sand deposits of northeastern Maryland
(Washington: U.S. Geological Survey, 1938)
Scale 1:62,500. Map is from U.S. Geological Survey, 1938; Bulletin 906, Plate 9. Size of original printed map height 31.5 inches, width 45 inches.
Map Showing the Distribution of the Lower Cretaceous Formations of Maryland
(Baltimore: Maryland Geological Survey, 1911)
Scale 1:312,500. Size of original printed map height 18.50 inches, width 19.25 inches.
Geologic Map of Brandywine Area, Southern Maryland
(Washington: U.S. Geological Survey, 1955)
Scale 1:31,680. Map is from U.S. Geological Survey; Professional Paper 267. Size of original printed map height 29 inches, width 19.75 inches.
Map of Maryland Showing the Highways Built by the Maryland Geological Survey
(Baltimore: Maryland Geological Survey, 1910)
Scale 1:500,000. Size of original printed map height 32.5 inches, width 19 inches.