Ice sheet advance during the most recent ice age

Ice sheet advance during the most recent ice age

Courtesy National Oceanic and Atmospheric Administration Paleoclimatology Program.

As recently as 15,000 years ago, during the Wisconsin Glaciation, ice sheets extended south into what are now the Midwestern states. Many North American landscape features, including Cape Cod, Long Island, and the Great Lakes, were shaped by this series of glacial advances and retreats.

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