We’re calling it ‘Building the Great Map,’” said Boheme ... “The Great Lakes generate ($)6 trillion to America’s GDP and support over 51 million jobs, yet we have barely scratched ...

compromising an outline of the Great Lakes watershed superimposed over another outline delineating the “Rustbelt megalopolis.” More offbeat offerings include maps of shipwrecks, startups ...

If poured out like a pitcher of lemonade, the water held by the Great Lakes could cover the land mass of both North and South America with ... this fresh water and map the bottom of the Great ...

North America’s Great Lakes are the largest source of fresh surface water in ... such as the Maumee River in Ohio. This map was created by Erin Aigner for Circle of Blue. Click image to enlarge. This ...

“Most of upper North America was covered by glaciation. But why, in this particular area, (are there) these Great Lakes?” said Aibing Li, a seismologist at the University of Houston who co ...