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Driftless Area |
 | | This karst region, also referred to as the Driftless Area, the Coulee Region or the Driftless Zone, escaped the last glaciers leaving the Paleozoic-age bedrock subject to erosion which helped create a curious topography of steep slopes and cliffs. |
 | | The Driftless Zone is an area of about 20,000 square miles in western Wisconsin, northeastern Iowa, southeastern Minnesota, and extreme northwestern Illinois, which was by-passed by the continental glaciers. |
 | | In Wisconsin, the Driftless Zone parallels the Mississippi River to the Illinois state line in a band 60 to 80 miles wide. |
| lwcd.org /driftless_area.htm (642 words) |
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