The Appalachian Mountains

Features include:

The Allegheny Mountains
Deep Creek Lake, Maryland's largest lake

Backbone Mountain, Maryland's highest point of land

Mountains, valleys, lakes and streams

Forests, farms, orchards and vineyards

Sub-arctic swamp

350-million-year-old rock formations

The Piedmont Plateau

Features include:

Rolling hills, pasture and fertile farmland

Quarries and iron pits

Susquehanna and Monocacy rivers

Great Falls of the Potomac River

Fall line, where the Piedmont Plateau flattens into Atlantic Coastal Plain

 The Atlantic Coastal Plain

Features include:

The Chesapeake Bay

Bay tributaries, swamps and marshes

The Atlantic Ocean