A couple sits on a beach near Lake Erie, Wednesday, Sept. 4, 2024, in Oregon, Ohio. An effort to map the bottom of the Great Lakes is gaining momentum amid promises that it will help ...

Lake Erie is the shallowest of the Great Lakes but bests its cousins in several other ways. Find out more about all the Great ...

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she’s leading a campaign to map every meter of the lakes’ bottom.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.