[citation needed] Wisconsin's Western Upland is a rugged, hilly region deeply dissected by rivers and streams.
The Western Upland of Wisconsin is part of the Driftless Area, a region that has avoided being covered by glaciers for the past several million years.
[citation needed] Farmland is prevalent in the Western Upland anywhere where the slope of the land is gradual enough to permit it, generally on the ridge tops and the valley bottoms.
With a population of 59,498, the largest city in the Western Upland is Janesville in the extreme southeast corner of the region.
Other principal cities include Beloit, Monroe, Platteville, Dodgeville, Richland Center, Prairie du Chien, and Sparta.