We’ve had a lot of awesome ice-sheet events on Lake Superior, but I can’t say we’ve had smooth, round boulders. This video by Bob Smitka shows ice boulders on the Lake Michigan shore at Glen Arbor from the polar vortex days.
We’ve had a lot of awesome ice-sheet events on Lake Superior, but I can’t say we’ve had smooth, round boulders. This video by Bob Smitka shows ice boulders on the Lake Michigan shore at Glen Arbor from the polar vortex days.
