 |
|
|
|
|
|
Research Home
 Tools Thesaurus of Geographic Names Full Record Display
|
|
|
|
 |
|
|
|
 |
 |
|
|
|
|
|
|
Vernacular Display | English Display |
|
|
|
|
|
|
Click the  icon to view the hierarchy. |
|
|
Laurentide Ice Sheet (former physical feature) |
Note: Was the principal glaciation of North America, extending 5,000,000 square miles, and covering present-day Canada and the United States during the Pleistocene Epoch (1,600,000 to 10,000 years ago). At its maximum extent it covered an area with a southern limit at around latitude 37 degrees N, and its thickness was 8,000-10,000 feet or more. It probably originated on the Labrador-Ungava plateau and on the mountains of the Arctic islands of Canada, and was centered over Hudson Bay. It is believed to have combined with other ice caps that had formed on local highlands in eastern Canada and in the northeastern United States as it spread. |
Names: |
| |
Hierarchical Position: |
|
|
Place Types: |
|
|
Sources and Contributors: |
|
|
