The organization has been pushing since 2018 to create high resolution maps of all five Great Lakes bottoms, but that’s a ...

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 ...

As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

As executive director of the Great Lakes Observing System, she’s leading a campaign to map every meter of the lakes’ bottom.

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 ...

Data, maps, and reports are available at the lake-level (Great Lakes), for each state, and for the five-state region as a whole by clicking on the links below: Brief reports that summarize, analyze, ...

As executive director of the Great Lakes Observing System, she’s leading a campaign to map every meter of the lakes’ bottom. The effort, the marine scientist says, will pinpoint hundreds of ...