U.S. and Canada

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Across
  1. 2. the other mountain system of the U.S. and Canada
  2. 3. one major of the two mountain chains in the eastern United States and Canada
  3. 6. a group of 5 freshwater lakes in central america.
  4. 8. line of highest points in the Rockies that makes the separation between rivers flowing eastward and westward
  5. 9. a northern part of the interior lowlands that is a rocky, flat region covering nearly two million square miles and circling Hudson Bay
Down
  1. 1. winds that blow from west to east in the middle of the latitude
  2. 4. permanently frozen ground
  3. 5. Canada's longest river
  4. 7. A largely treeless area that continues the ascent about 4,000 feet
  5. 10. huge swampland that covers some 4,000 square miles