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Lake Superior's deepest point [4] on the bathymetric map. [1] Lake Superior has a surface area of 31,700 square miles (82,103 km 2), [7] which is approximately the size of South Carolina or Austria. It has a maximum length of 350 statute miles (560 km; 300 nmi) and maximum breadth of 160 statute miles (257 km; 139 nmi). [8]
Pictured Rocks National Lakeshore is a U.S. National Lakeshore in the Upper Peninsula of Michigan, United States. It extends for 42 mi (68 km) along the shore of Lake Superior and covers 73,236 acres (114 sq mi; 296 km 2).
The Gunflint chert (1.88 Ga [1]) is a sequence of banded iron formation rocks that are exposed in the Gunflint Range of northern Minnesota and northwestern Ontario along the north shore of Lake Superior. The Gunflint Chert is of paleontological significance, as it contains evidence of microbial life from the Paleoproterozoic. [2]
The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior. Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota, Wisconsin, Nebraska, Iowa, Kansas, and Michigan. In 1969 the Lake Superior agate was designated by the Minnesota Legislature as the official ...
Cliffs of Palisade Head on Lake Superior. The North Shore Highlands are a physiographic and ecological region of the U.S. state of Minnesota in central North America. They were formed by a variety of geologic processes, but are principally composed of rock created by magma and lava from a rift about 1.1 billion years ago, which rock formations are interspersed with and overlain by glacial ...
The sandstone has been variously called redstone, brownstone, Lake Superior Sandstone, and Eastern Sandstone. In 1907, the Jacobsville Formation was given its current classification and the name Jacobsville , in honor of Jacobsville, Michigan , a town known for its production of the sandstone.
The New York Times reported that winds had reached 70 miles per hour and for three days there was a violent snowstorm on this part of Lake Superior — which proved devastating to at least three ...
The Sawtooth Mountains on the shore of Lake Superior, looking west by southwest from Grand Marais, Minnesota. The Sawtooth Mountains are a range of small mountains on the North Shore of Lake Superior in the U.S. state of Minnesota, extending about 30 miles (48 km) from Carlton Peak near Tofte on the west, to Grand Marais on the east.