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Generalized Geologic Map of Maryland
(Baltimore: Maryland Geological Survey, 1967)
Map of Prince George's County and District of Columbia showing the geological formations
(Baltimore: Maryland Geological Survey, 1911)
1 map : colored ; 113 x 77 cm. Scale 1:62,500 (W 77⁰05ʹ--W 76⁰35ʹ/N 39⁰05ʹ--N 38⁰35ʹ).
Slope map of Baltimore County
(Baltimore: Maryland Geological survey, 1969)
1 map : colored ; 55 x 89 cm. Scale: 1:62,500.
Map of Howard County showing topography and the election districts
(Baltimore: Maryland Geological Survey, 1965)
Map of Worcester County showing the topography and election districts
(Baltimore: Maryland Geological Survey, 1964)
Map showing the Distribution of Sandstone and Quartzites in Maryland
(Baltimore: Maryland Geological Survey, 1898)
Scale 1:1,000,000. Map is from Maryland Geological Survey, 1898; Volume 2, Plate 30. Size of original printed map height 4.75 inches, width 13 inches.
Roads and Road Materials- Kent, Montgomery and St. Marys Counties
(Baltimore: Maryland Geological Survey, 1899)
Scale 1:500,000 Map is from Maryland Geological Survey, 1899; Volume 3, Plate 25. Size of original printed map height 8.25 inches, width 6 inches.
Map of Central Cecil County showing Areal Distribution of Clay- Bearing Formations of the Potomac Group
(Baltimore: Maryland Geological Survey, 1902)
Scale 1:62,500. Map is from Maryland Geological Survey, 1902; Volume 4, Plate XLV. Size of original printed map height 6.25 inches, width 7.75 inches.
Roads and Road Materials- Washington and Worcester
(Baltimore: Maryland Geological Survey, 1899)
Scale 1:500,000. Map is from Maryland Geological Survey, 1899; Volume 3, Plate 28. Size of original printed map height 8.25 inches, width 5.25 inches.
Map showing Areal Distribution of Clay-Bearing Formations of the Potomac Group in the Region Southwest of Baltimore City
(Baltimore: Maryland Geological Survey, 1902)
Scale 1:62,500. Map is from Maryland Geological Survey, 1902; Volume 4, Plate XLVII. Size of original printed map height 6.25 inches, width 7.75 inches.