What type of elevation does Allegheny Front and Appalachian Platea have in common?
Appalachian Plateau The Appalachian Plateau is a series of rugged, high plains located on the western side of the Appalachian Highlands. The Appalachian Highlands are a mountain range that run down the entire east coast of the United States.
Casselman Formation The Casselman Formation mapped sedimentary bedrock unit in Pennsylvania, Maryland, and West Virginia, of Pennsylvanian age. It is the uppermost of two formations in the Conemaugh Group, the lower being the Glenshaw Formation. The boundary between these two units is the top of the marine Ames Limestone. The Conemaugh Group overlies the Upper Freeport coal bed of the Allegheny Formation and underlies the Pittsburgh coal seam of the Monongahela Group.