Rocks, sand dollars, coquina mollusks — anything the ocean ... Depths range from 210 feet in Lake Erie to more than 1,300 feet in ... The Great Lakes map would provide fuller images of ...

The lakes cover 94,250 square miles (244,106 square kilometers) — an area larger than the state of Kansas. Depths range from 210 feet (64 meters) in Lake Erie to more than 1,300 feet (396 meters ...

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.

Depths range from 210 feet (64 meters) in Lake Erie to more than 1,300 feet (396 meters) in parts of Lake Superior.The idea is gaining traction since technology has improved and scientists have ...

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.

MADISON, Wis. — 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 ...

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 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.