Outline of the Geology and Physical Features of Maryland |
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Alleghany County Anne Arundel County anticlinal Appalachian Region Atlantic Autumn Baltimore County beds belt Blue Ridge Cambrian Carroll County Catoctin Mountains Chesapeake Bay clays coal coast Coastal Plain color composed continent Crassatella Creek crystalline rocks Cumberland Delaware deposits district east eastern border Eastern Maryland Eastern Shore elevation Eocene extends feet folded formations forms fossils Frederick County Frederick valley Garrett County geological map gneiss gradually granites green-sand Harford County isothermal lines Johns Hopkins University June Kent County land limestone Lower Cretaceous marble Mary's County mean temperature miles mineral Miocene Montgomery County Mortoni nearly North Mountain Paleozoic Parr's Ridge Patuxent Pennsylvania Piedmont Plateau Potomac River precipitation Prince George's County range reaches sand sandstone schists SEASONS sediments semi-crystalline shales Silurian slates slope Southern Maryland strata streams structure Summer surface TABLE OF MEAN topography Triassic Turritella Upper Cretaceous Virginia Washington western division western portion Winter