During the last ice age vast areas of the northern latitudes of what is now the United States were covered with, yes, ice. Glaciers slowly moved across the land and ground the bedrock into dust. Everything in their path was pushed out of the way and deposited far from their original source. As proof of this, walrus and caribou remains have been found as far south as the Carolinas. Trees slowly moved south as the temperature cooled.
When the climate warmed and the glaciers retreated… Continue