@hasmis what's the place?
I did some depth and environmental surveying in the 90s on northern Lake Huron that was related to nuclear plant siting. I'm not sure how of the overall results, but the area is all new Provincial Parks now.
@johnefrancis ps. It's so neat how they'll do this without geophysics, like the nuclear waste thing at Bruce, and the Niagara Tunnel to nowhere.