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.

Only a fraction of the Great Lakes' bottom has been mapped, and the available charts, completed decades ago, are low-resolution. The Great Lakes Observing System, which gathers and manages data ...

The organization has been pushing since 2018 to create high-resolution maps of all five Great Lakes bottoms, but that’s a daunting task. The lakes cover 94,250 square miles (244,106 square ...

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.

The Great Lakes, which nearly 40 million people in the United States and Canada depend on for drinking water, have already taken a beating from climate change. Water levels dropped this fall to ...

The organization has been pushing since 2018 to create high-resolution maps of all five Great Lakes bottoms, but that’s a daunting task. The lakes cover 94,250 square miles — an area larger ...

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.