New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.
4mon
The Canadian Press on MSNPush to map Great Lakes bottom gains momentum amid promises effort will help fishing and shippingThe Great Lakes map would provide fuller images of bottom ... Fully mapping the lakes for the first time also could reveal the location of hundreds of shipwrecks — some estimates put the number ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results