found: Work cat.: 2009028386: Skeate, J. Familiar world, 2009:ECIP galley (Driftless Region, around northeast Iowa, southwestern Wisconsin, and southwestern Minnesota)
found: Columbia gazetteer, 1998(Driftless Area; largely in SW Wis. but extending into SE Minn., NE Iowa, and NW Ill.; c. 13,000 sq. mi.; untouched by glaciers; formerly important lead-mining region)
found: USGS WWW site, July 27, 2009(Driftless Area; unglaciated Driftless Area, primarily in southwestern Wisconsin)
found: Wikipedia, July 28, 2009(Driftless Area or Paleozoic Plateau, also Driftless Zone, Driftless Region. Driftless Land)