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Kettle Moraine

USGS topographical map of The Kettle Moraine is a belt of irregular ridges and upland areas; it extends for more than 120 miles, mostly in Sheboygan, Washington, and Waukesha Counties. The Kettle Moraine is composed of glacial sediment deposited between the Green Bay and Lake Michigan Lobes approximately 18,000 to 15,000 years ago as they receded from their maximum positions during the most recent glaciation. Pot-shaped depressions, or kettles, formed when large blocks of buried ice melted after the ice lobes receded. Large parts of the Kettle Moraine have been preserved in the Kettle Moraine State Forest.

 

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