What Formed The Great Lakes - Web about 570 million years ago, the saint lawrence rift was formed, which laid the basis for creating lake erie, lake. Web the present configuration of the great lakes basin is the result of the movement of massive glaciers through north america, a.
Web about 570 million years ago, the saint lawrence rift was formed, which laid the basis for creating lake erie, lake. Web the present configuration of the great lakes basin is the result of the movement of massive glaciers through north america, a.