What type of area does the Driftless Area refer to?

The Driftless Area specifically refers to a unique geographic region in the upper Midwest of the United States that was not impacted by glacial ice during the last ice age. This is significant because while surrounding regions were sculpted and shaped by glaciers, the Driftless Area remained untouched, which has resulted in distinct geological features such as steep valleys, rugged terrain, and a rich variety of ecosystems.

This untouched landscape has allowed for the preservation of ancient river systems and diverse biological communities, leading to a wealth of biodiversity. The designation as "driftless" indicates a lack of glacial drift, which is the loose material left behind by glaciers, commonly resulting in flat terrain and uniform landscapes in other parts of the Midwest that were glaciated.

Understanding this distinction helps to appreciate the ecological and geological significance of the Driftless Area, as well as its cultural and historical importance to the regions surrounding it.