The Great Lakes Observing System (GLOS), an international non-profit research and advocacy group, just wants to map the Great Lakes — all of them.

The Great Lakes Observing System wants to look through all this fresh water and map the bottom of the Great Lakes, an undertaking that could locate "thousands" of shipwrecks and help scientists ...

Now, he sat behind a desk and behind that was a huge map — maybe three by four feet — of the Great Lakes. Not a decorative ...