Coastal & Estuarine Geology Program Navigation buttonsGeologic Maps of Maryland
Prince Georges County (1968)

Caution: These images were scanned from a paper copy of the out-of-print and outdated 1968 Geologic Map of Maryland. Due to the age of this map, these images do not necessarily represent an accurate interpretation of currently accepted geologic theory. Because the projection of the original map was distorted during reproduction, and the paper medium is not stable, these images do not meet any cartographic standards. Therefore geographic or Cartesian coordinates cannot be applied to these images, and georeferencing is not possible.

These images are for illustration purposes only. Do not use these documents for GIS, navigation, legal purposes, surveying, or anything else other than document illustrations. They were created only to illustrate our publications and are not accurate enough to be used for any other purposes. You may use them as illustrations only, and you must give proper credit to Maryland Geological Survey when using these maps.

A newer geologic map (2003) of Prince Georges County is available as a PDF download here. A newer topographic map (1987) of Prince Georges County is available through our List of Publications.

Legend

Click on a tile to display information about the associated rock types or formations.

Baltimore Gabbro Complex  (Early Paleozoic- Late Precambrian ?)
Lower Pelitic Schist  (Late Precambrian ?)
Boulder Gneiss (Late Precambrian ?)
Monmouth Formation (Cretaceous)
Matawan Formation (Cretaceous)
Magothy Formation (Cretaceous)
Potomac Group (Cretaceous)
Calvert Formation (Miocene)
Nanjemoy Formation  (Eocene)
Aquia Formation (Paleocene)
Upland Deposits -Western Shore (Quaternary)
Lowland Deposits (Quaternary)
 

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Updated 7/28/00

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