#EarthPorn #silvermine #underwater Silver Islet mine in…
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#EarthPorn #silvermine #underwater
Silver Islet mine in Lake Superior, Ontario, one of the world's richest, discovered in 1868, that operated by mining shafts extending deep below the lake surface until flooding in 1884.
Source:https://blurt.blog/silver/@offgridlife/3xa4av-exploring-an-ancient-silver-mine-on-lake-superior
Silver Islet mine in Lake Superior, Ontario, one of the world's richest, discovered in 1868, that operated by mining shafts extending deep below the lake surface until flooding in 1884.
Source:https://blurt.blog/silver/@offgridlife/3xa4av-exploring-an-ancient-silver-mine-on-lake-superior
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