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  • the area now known as Alaska. At that point, they were blocked by the Laurentide ice sheet that covered most of Canada, which confined them to Alaska for
    12 KB (1,906 words) - 02:18, 11 February 2012
  • in the Holy Hill formation. Between 300,000 and 30,000 years ago the Laurentide Ice Sheet and more specifically the Green Bay lobe changed most of the
    43 KB (7,232 words) - 01:51, 15 July 2015