Vocabulary Regions transportation Ways of moving people and goods Population density The number of people who live in a unit of area plateau A large, high level area of land textile Cloth or fabric made by weaving or knitting ridge A line of hills or mountains barter To trade goods or services for other goods and services Coastal plain A low lying coastal plain that makes up the eastern most part of Virginia Fall line The area where rivers form waterfalls or rapids because of a general drop in land’s elevation Tidewater Region A flat stretch of land bordering the Atlantic Ocean Hampton Roads Wide harbor at the mouth of the James River on the Chesapeake Bay Piedmont Region Long sloping plateau that stretches from the fall line to the Blue Ridge Mountains Richmond Independent city and Virginia's capital Blue Ridge Region Old rounded mountains and source of many rivers. Allegheny Mountains Part of the Appalachians that runs from Pennsylvania to Virginia and West Virginia. Valley and Ridge Region An area of western Virginia that includes the Alleghany Mountains and Great Valley Cumberland Gap A pass though the Appalachian Mountains where Virginia, Kentucky, and Tennessee meet. Daniel Boone Frontier explorer and hunter who helped blaze a trail across the Appalachians through the Cumberland Gap. Appalachian Plateau An elevated woodlands, hollows and gorges in the far southwestern part of Virginia.