What lies beneath the Great Lakes' waves is largely unknown, but there's a new push to learn more about thousands of ...

Jennifer Boehme grew up scouting beaches around her home in St. Petersburg, Florida, for whatever she could find. Rocks, sand ...

The last effort to map the lakes came in the 1970s. Maps were largely created using single-beam sonar technology similar to today's commercially available depth- and fish-finders. The system ...

Jennifer Boehme grew up scouting beaches around her home in St. Petersburg, Florida, for whatever she could find. Rocks, sand dollars, coquina mollusks — anything the ocean gave up.Now, 40 years ...