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The pumps holding back the waters of the lake stopped and in early 1884 the islet's mine shafts, which had reached a depth of 384 metres, were flooded. They would never be de-watered, and the mine's underground operations would never be reopened. Over the 16 years that the mine was in operation, $3.25 million worth of silver was extracted.
Alexander Hamilton Sibley (October 17, 1817 – July 10, 1878) was the president of the Silver Islet Mining Company which operated a silver mine on the Sibley Peninsula in northwestern Ontario, which was purchased from the Montreal Mining Company after they had decided the mine was an "engineering nightmare" and sold it to Silver Islet Mining for $225,000.
This list of deepest mines includes operational and non-operational mines that are at least 2,212 m (7,257 ft), which is the depth of Veryovkina Cave, the deepest known natural cave in the world. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.
One Ojibway legend identifies the giant as Nanabijou, who was turned to stone when the secret location of a rich silver mine now known as Silver Islet was disclosed to white men. [3] Sleeping Giant is the namesake and general setting of the 2015 Canadian film Sleeping Giant.
Also on the peninsula are the Thunder Cape Bird Observatory, at its southern tip, and the small town of Silver Islet. Highway 587 runs along the peninsula from Highway 17 to Silver Islet. The peninsula was named after Alexander H. Sibley, president of the Silver Islet Mining Company that developed a mine there.
Aerial view of the Sleeping Giant View of Lake Superior and surrounding area from the Top of the Giant trail terminus. Sleeping Giant Provincial Park, established in 1944 as Sibley Provincial Park and renamed in 1988, is a 244-square-kilometre (94 sq mi) park located on the Sibley Peninsula in Northwestern Ontario, east of Thunder Bay.
American limnologist J. Val Klump was the first person to reach the lowest depth of Lake Superior on July 30, 1985, as part of a scientific expedition, which at 122 fathoms 1 foot (733 ft or 223 m) below sea level is the second-lowest spot in the continental interior of the United States and the third-lowest spot in the interior of the North ...
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