Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna.
Virginia is bordered by Maryland and Washington, D.C. to the north and east; by the Atlantic Ocean to the east; by North Carolina to the south; by Tennessee to the southwest; by Kentucky to the west; and by West Virginia to the north and west. Virginia’s boundary with Maryland and Washington, D.C. extends to the low-water mark of the south shore of the Potomac River.
The region, known for its heavy clay soil, includes the Southwest Mountains around Charlottesville. The Blue Ridge Mountains are a physiographic province of the Appalachian Mountains with the highest points in the Commonwealth, the tallest being Mount Rogers at 5,729 feet (1,746 m). The Ridge-and-Valley region is west of the mountains, carbonate rock based, and includes the Massanutten Mountain ridge and the Great Appalachian Valley, which is called the Shenandoah Valley in Virginia.