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Allegany County Detail - East (1968)

PLEASE NOTE: These images were scanned from a paper copy of the 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. Also, the projection of the original map was distorted during reproduction, and the paper medium is not stable. 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.

Click on a tile to display information about the associated rock types or formations.
Geologic Map of Allegany County, East
Dunkard Group (Permian) Wills Creek Shale and Bloomsburg Formation (Silurian)
Monongahela Formation (Permian) Clinton Group (Silurian)
Conemaugh Formation (Pennsylvanian) McKenzie Formation (Silurian)
Allegheny and  Pottsville Formations (Pennsylvanian) Tuscarora Sandstone (Silurian)
Mauch Chunk Formation (Mississippian) Juniata Formation (Ordovician)
Greenbrier Formation (Mississippian) Martinsburg Formation (Ordovician)
Pocono Group (Mississippian) Chambersburg Limestone (Ordovician)
Hampshire Formation (Devonian) Pinesburg Station Dolomite (Ordovician)
"Chemung" Formation,  Parkhead Sandstone, Brallier Formation, Harrell Shale (Devonian) Rockdale Run Formation (Ordovician)
Hamilton Group (Devonian) Stonehenge Limestone (Ordovician)
Oriskany Group (Devonian) Conococheague Limestone (Cambro-Ordovician)
Helderburg Formation and Keyser Limestone (Devonian-Silurian) Elbrook Limestone (Cambrian)
Tonoloway Formation (Silurian) Waynesboro Formation (Cambrian)

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Updated 7/25/00

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