 
The Appalachian Mountains
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The Allegheny Mountains
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Deep Creek Lake, Maryland's largest lake
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Backbone Mountain, Maryland's highest point of land
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Mountains, valleys, lakes and streams
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Forests, farms, orchards and vineyards
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Sub-arctic swamp
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350-million-year-old rock formations
The Piedmont Plateau
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Rolling hills, pasture and fertile farmland
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Quarries and iron pits
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Susquehanna and Monocacy rivers
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Great Falls of the Potomac River
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Fall line, where the Piedmont Plateau flattens into Atlantic Coastal Plain
The Atlantic Coastal Plain
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