Laurentide ice sheet

The Laurentide Ice Sheet was a massive ice sheet that covered during the last glacial period ( in North America called the Wisconsin glaciation ) an extensive area that covered the entire present-day territory of Canada and a part of the United States before Christ between about 90,000 and 20,000. The southern limit of glaciation reached the area around the present-day cities of New York City and Chicago, and ran along the Missouri west to the northern foothills of the Cypress Hills, behind which the ice sheet with the running together of the Cordilleras.

→ See also: Canadian Shield

• Paläogeographisches object
• Former glacier