"Stamp sands" on the eastern Keweenaw Peninsula shoreline in Michigan's Upper Peninsula near Gay on Thursday, May 19, 2022. The sands are legacy mine tailings; crushed waste rock from the historic Mohawk and Wolverine copper mines that was dumped on the beach starting a century ago. Over time, they have eroded down the Lake Superior coastline, covering beaches and fish spawning habitats. Efforts to dredge the sands in some places and contain them to certain areas is ongoing. (Cory Morse | MLive.com)
