The Piedmont is a plateau region located in the eastern United States between the Atlantic Coastal Plain and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south. The Piedmont province is a physiographic province of the larger Appalachian division. The province consists of the Piedmont Upland and Piedmont Lowlands sections. The Fall line marks its eastern boundary with the Coastal Plain. To the west, the Piedmont is mostly bounded by the Blue Ridge Mountains, the easternmost range of the main Appalachians. Physiographically, the Piedmont is considered a province of the larger Appalachian Highlands physiographic division. The width of the Piedmont varies, being quite narrow above the Delaware River but nearly 300 miles (475 km) wide in North Carolina. The Piedmont's area is approximately 80,000 square miles (207,000 km²).
The name "Piedmont" roughly translates as foot (pied) hill (mont) in French, and the region is named after the Italian region of Piedmont.
The surface relief of the Piedmont is characterized by relatively low, rolling hills with heights above sea level between 200 feet (50 m) and 800 feet to 1,000 feet (250 m to 300 m). Its geology is complex, with numerous rock formations of different materials and ages intermingled with one another. Essentially, the Piedmont is the remnant of several ancient mountain chains that have since been eroded away. Geologists have identified at least five separate events which have led to sediment deposition, including the Grenville orogeny (the collision of continents that created the supercontinentRodinia) and the Appalachian orogeny during the formation of Pangaea. The last major event in the history of the Piedmont was the break-up of Pangaea, when North America and Africa began to separate. Large basins formed from the rifting and were subsequently filled by the sediments shed from the surrounding higher ground. The series of Mesozoic basins is almost entirely located within the Piedmont region.
Soils and farming
Piedmont soils are generally clay-like and moderately fertile. In some areas they have suffered from erosion and over-cropping, particularly in the South where cotton was historically the chief crop. In the central Piedmont region of North Carolina and Virginia, tobacco is the main crop, while in the north there is more diversity, including orchards, dairying, and general farming. The northern end of the piedmont has some of the most fertile soils.
The Piedmont region is closely associated with the Piedmont blues, a style of blues music that originated there in the late 19th century. Most Piedmont blues musicians came from Virginia, the Carolinas, and Georgia. During the Great Migration, Black Americans migrated to the Piedmont. With the Appalachian Mountains to the west, those who might otherwise have spread into rural areas stayed in cities and were thus exposed to a broader mixture of music than those in, for example, the rural Mississippi delta. Thus, Piedmont blues was influenced by many types of music such as ragtime, country, and popular songs—styles that had comparatively less influence on blues music in other regions.
Many major cities are located on the Fall line, the eastern boundary of the Piedmont. Within the Piedmont region itself there are several areas of urban concentration, the largest being the Atlanta metropolitan area in Georgia. In North Carolina, the Piedmont Crescent includes several metropolitan clusters such as Metrolina (Charlotte), the Piedmont Triad, and the Research Triangle. The South Carolina Piedmont contains the major city of Greenville.
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