"Sometimes we find something new that we were not looking for," the Wisconsin Historical Society said about the discovery.

The Rochester area is still having some air quality concerns on Tuesday because of smoke from Canadian wildfires.

Much of the Upper Midwest continues dealing with swaths of unhealthy air because of drifting smoke from Canadian wildfires, covering the northern region of the U.S. at a time when people want to be ...

The $8 million federally funded project is a part of the larger effort to clean up the most polluted and degraded sites in the Great Lakes.