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Most of Lake Superior lies within the basin of the Midcontinent Rift. The rocks of Lake Superior's northern shore date back to the early history of the earth. During the Precambrian (between 4.5 billion and 540 million years ago) magma forcing its way to the surface created the intrusive granites of the Canadian Shield. [34]
The Stannard Rock Light is a lighthouse located on a reef that was the most serious hazard to navigation on Lake Superior. [ 6 ][ 7 ][ 8 ] The exposed crib of the Stannard Rock Light is rated as one of the top ten engineering feats in the United States. [ 9 ] It is 24 miles (39 km) from the nearest land, making it the most distant (from shore ...
Volcanic strata protrude at Isle Royale and the Keweenaw Peninsula [9]. Lake Superior occupies a basin created by the rift. [3] Near the present lake, rocks produced by the rift can be seen on the surface of Isle Royale and the Keweenaw Peninsula of the Upper Peninsula of Michigan, [9] northwest Wisconsin, [10] and on the North Shore of Superior in Minnesota and Ontario. [4]
The Great Lakes (French: Grands Lacs), also called the Great Lakes of North America, are a series of large interconnected freshwater lakes spanning the Canada–United States border. The five lakes are Superior, Michigan, Huron, Erie, and Ontario. (Hydrologically, Michigan and Huron are a single body of water, as they are joined by Straits of ...
Satellite view of Lake Nipigon. Lying 260 metres (853 ft) above sea level, the lake drains into the Nipigon River and thence into Nipigon Bay of Lake Superior. The lake and river are the largest tributaries of Lake Superior. It lies about 120 kilometres (75 mi) northeast of the city of Thunder Bay, Ontario.
The Slate Islands are a small archipelago in Lake Superior, Ontario, Canada, about 12 kilometres (7.5 mi) south of the town of Terrace Bay. The island group, consisting of 15 islands in total, was created by a meteorite impact which formed a crater about 32 km (20 mi) wide. [1] In 1985, the Ontario government established the Slate Islands as a ...
Whitefish Bay is a large bay on the eastern end of Lake Superior between Michigan, United States, and Ontario, Canada. It is located between Whitefish Point in Michigan and Whiskey Point along the more rugged, largely wilderness Canadian Shield of Ontario. The international border runs through the bay, which is heavily used by shipping traffic ...
Coordinates: 47°39′N 90°40′W. Split Rock Lighthouse on the North Shore of Lake Superior in a Minnesota state park nine miles southwest of Silver Bay. Winter along the North Shore. The North Shore of Lake Superior runs from Duluth, Minnesota, United States, at the western end of the lake, to Thunder Bay and Nipigon, Ontario, Canada, in the ...