Shipwrecks, canyons among mysteries to be uncovered amid push to map the bottom of the Great Lakes

Only 15 per cent of the lakes' bottom has been mapped, according to the Great Lakes Observing System. The organization has been pushing since 2018 to secure funding to map the entire lakebed in high-resolution. 

Shipwrecks, canyons among mysteries to be uncovered amid push to map the bottom of the Great Lakes
A sunken vessel in Lake Huron

Only 15 per cent of the lakes' bottom has been mapped, according to the Great Lakes Observing System. The organization has been pushing since 2018 to secure funding to map the entire lakebed in high-resolution.