What part of Alaska and Canada did the ice age cover?

During the Ice Age, large portions of Alaska and Canada were covered by massive ice sheets, particularly the Laurentide Ice Sheet, which extended over much of present-day Canada and parts of the northern United States. In Alaska, the Cordilleran Ice Sheet covered the coastal mountain ranges and extended into the interior regions. These ice sheets significantly shaped the geography and ecology of the areas they covered, leaving behind features such as glacial valleys and moraines.