Relative Location
The coastal plain's relative location is all around the borders of North America. The coast on the Atlantic Ocean side is on the east coast of North America while the Pacific Ocean side is the west coast. The Arctic Ocean is located North of Canada. The countries that the coastal plains are in, (North American countries) are all of the North American countries. Canada, U.S.A., Mexico, Belize, Guatemala, El Salvador, Honduras, Nicaragua, Haiti, Costa Rica, Panama, Cuba, Dominican Republic, Puerto Rico, and Jamaica are all North American countries which have coastal plains.