The immensely varied topography of Wisconsin provides examples of nearly every important physiographic process and topographic form. In the Driftless Area to the southwest, wind and water have weathered and carved away the countryside; along the Mississippi and other rivers are found most of the essential features of stream erosion and deposition; in the north and east glaciers have ground away the hills and left their mark on the plains and swamps.
The Physical Geography of Wisconsin, reprinted from the second edition, 1932, of the Wisconsin Geological and Natural History Survey...