Series - WGNHS

The Driftless Area: The extent of unglaciated and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota

The Driftless Area of southwestern Wisconsin and northwestern Illinois got its name from the lack of glacial sediment ("drift") covering the landscape. The surficial geology and topography of the Driftless Area are thus distinct from the surrounding region where multiple phases of glaciation left their mark. This pamphlet, a collaborative effort between...
- ES057
  
  The Driftless Area: The extent of unglaciated and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
  
  Carson, E.C.; Curry, B.B.; Kerr, P.J.; Lusardi, B.A.;
  
  2023
  
  Report: 4 p.
- ZIP ES057-gis
  
  GIS data for the outline of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
  
  Carson, E.C.; Curry, B.B.; Kerr, P.J.; Lusardi, B.A.;
  
  2023
  
  GIS Data: Shapefiles (.shp file format)
- ZIP ES057-map
  
  Page-sized and web-version maps of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
  
  Carson, E.C.; Curry, B.B.; Kerr, P.J.; Lusardi, B.A.;
  
  2023
  
  Map: Documents (.pdf file format), images (.tif file format)