O. USA and Canada

O. USA and Canada

Courtesy of SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE

http://visibleearth.nasa.gov/view_rec.php?id=793


The Great Lakes are The largest collection of freshwater lakes on Earth. They formed about 10,000 years ago at the end of the last ice age. The lakes were carved out by the movement of great continental glaciers moving south.
The Great lakes lie on the border between Canada to the north and the United States of America to the south.
In this cloud free image areas with sediments flowing into the lakes are clearly seen. The light coloration can be seen in the southern portion of Lake Huron, Lake St. Claire, much of Lake Erie, and in the outflow of the Niagara River into Lake Ontario.