Dissected plateau Dissected plateau A dissected plateau is a plateau area that has been severely eroded so that the relief is sharp. Such an area may be referred to as mountainous, but dissected plateaus are distinguishable from orogenic mountain belts by the lack of folding, metamorphism, extensive faulting, or magmatic activity that accompanies orogeny. The Allegheny Plateau, the Cumberland Plateau, the Ozark Plateau, and the Catskill Mountains in the United States and the Blue Mountains in Australia and the Deccan Plateau in India are examples of dissected plateaus formed after regional uplift. These older uplifts have been eroded by creeks and rivers
Culture of the Southern United States still stand in some of Little Dixie. All the crops grown there today are corn, soybeans and wheat, for which the area was better suited than for Southern crops like cotton or tobacco. Rural southern Missouri in the Ozark Plateau and the bootheel are definitively southern in culture. Many areas of New Mexico, Arizona and California were predominantly settled by European American southerners as they moved west in the 19th and early 20th centuries. For instance, pro-Confederate governments were established in what is now Arizona and New Mexico during the Civil War and, at one point, southern California was on