Land "just beyond the end of the glaciers"?
Florida and the Mississippi river delta are hardly just beyond the end of the glaciers, unless 1000 miles counts as "just beyond".
It may have reached further in previous ice ages (from which the rebound would have presumably already happened) but didn't even fully cover Minnesota and Wisconsin in the most recent one. It never got further than the southern edge of Illinois at any point in the Pleistocene.
Biting the hand that feeds IT
