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Northern Outer Piedmont

Ecoregion in Piedmont in NC, VA

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The Northern Outer Piedmont (45f) is an irregular plain with low rounded ridges and shallow ravines; ranges of low hills are scattered across The Northern Outer Piedmont ecoregion but monadnocks are much rarer than in the Inner Piedmont (45e). An area of rapids, cascades, waterfalls, and islands (the Fall Zone) occurs along the eastern boundary of Ecoregion 45f and contains urban and industrial areas. Elevations range from 200 to 675 feet (61-206 m) and relief varies from 100-250 feet (30-76 m); maximum relief and elevation are less than in the Northern Inner Piedmont (45e) to the west and greater than in the Middle Atlantic Coastal Plain (63) to the east.

— EPA

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Ecoregion