Map showing northern piedmont, piedmont, middle Atlantic coastal plain, southeastern plans, Blue Ridge, ridge and valley, southwestern Appalachians, and southern coastal plain.

Figure 4. Ecoregions of Virginia, North Carolina, South Carolina, and Georgia. Source: U.S. Environmental Protection Agency, level IV ecoregions. Available online at www.epa.gov/wed/pages/ecoregions/level_iii_iv.htm.