Wisconsin glaciation  From Wikipedia, the free encyclopedia Jump
to: navigation, search  The Wisconsin Glacial Episode, also
called the Wisconsinan glaciation, was the most recent major
advance of the North American ice sheet complex. This advance
included the Cordilleran ice sheet, which nucleated in the
northern North American Cordillera, the Innuitian ice sheet,
which extended across the Canadian Arctic Archipelago, the
Greenland ice sheet, and the massive Laurentide ice sheet[1]
that covered the high latitudes of central and eastern North
America. This advance was synchronous with global glaciation
during the last glacial period, including the North American
alpine glacier advance, known as the Pinedale glaciation. The
Wisconsin glaciation extended from approximately 85,000 to
11,000 years ago, between the Sangamon interglacial (known
globally as the Eemian stage) and the current interglacial, the
Holocene. The maximum ice extent occurred approximately
25,000–21,000 years ago during the last glacial maxim