Wisconsin Glacial Stage: Quick Facts

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Map showing the extent of the Laurentide, Cordilleran, and Greenland ice sheets during the Wisconsin glaciation, roughly 100,000 to 11,000 years ago. The Laurentide Ice Sheet covers most of present-day Canada and parts of the northern United States in light blue, the Cordilleran Ice Sheet covers the Pacific Northwest in teal, and the Greenland Ice Sheet is marked in purple. Modern international and state or provincial boundaries are outlined for reference.

Map of the northern United States illustrating the extent of Pleistocene ice sheets, with shaded and outlined areas showing the maximum reach of the Wisconsinan, Illinoian, Kansan, and Nebraskan glaciations. The map uses different colors and line styles to distinguish each glacial advance and includes a labeled Driftless Area that remained unglaciated.

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Mankato Glacial Substage Pleistocene Series Sangamon Interglacial Stage Illinoian Glacial Stage Kansan Glacial Stage Nebraskan Glacial Stage Yarmouth Interglacial Stage Aftonian Interglacial Stage Calabrian Stage Gelasian Stage Weichsel Glacial Stage Eemian Interglacial Stage