Many major cities are on the Atlantic Seaboard fall line, the eastern boundary of the Piedmont. Within the Piedmont area, there are many large urban areas. The largest is the Philadelphia metropolitan area in Pennsylvania and New Jersey. The Piedmont cuts Maryland in half, It covers the Baltimore–Washington metropolitan area. In Virginia, the Greater Richmond metropolitan area is the largest. In North Carolina, the Piedmont Crescent includes several areas. These include the Charlotte metropolitan area, the Piedmont Triad, and the Research Triangle. Other notable areas include the Greenville-Spartanburg-Anderson, SC Combined Statistical Area in South Carolina, and the Atlanta metropolitan area in Georgia.