Great Lakes

Why are the great lakes here? Their shape is closely related to glacial episodes and moraines left by the most recent retreat (Larson and Schaetzl, 2001).  But Lake Superior’s size and location is also coincident with the basin formed by the Keweenaw Rift, more than 1 billion years ago. Lakes and especially large ones are rare and do not survive very long.  The Great Lakes area is also marked by many smaller lakes, which is quite unlike other non-glaciated parts of the continent.

Great Lakes Links

Great Lakes Science Center

Introduction to the Great Lakes

EPA Atlas: Great Lakes

Lake Superior Resources

Coast Watch: Superior

Lake Superior OverviewLake Superior Facts & Figures

Origin of Lakes

Formation of Lakes

                                              Flash Movie for Kids--Great Lakes Formation

                                        Origin and Age of Lakes