The Lake Superior beach at Sand Point is still covered with stamp sands from old copper mines. Approximately 500 million tons of them were dumped into Lake Superior and its tributaries in the Keweenaw Peninsula.
https://www.circleofblue.org/wp-content/uploads/2018/06/Circle-of-Blue-Water-Speaks-600x139.png00Circle of Bluehttps://www.circleofblue.org/wp-content/uploads/2018/06/Circle-of-Blue-Water-Speaks-600x139.pngCircle of Blue2014-01-08 10:32:592014-01-08 10:32:59The Lake Superior beach at Sand Point is still covered with stamp sands from old copper mines. Approximately 500 million tons of them were dumped into Lake Superior and its tributaries in the Keweenaw Peninsula.
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