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The mine is 530 metres (1,750 feet) below surface, [38] extending 7 km 2 (2.7 sq mi) under Lake Huron - roughly the size of the town. It is the largest underground salt mine in the world. [37] The salt deposits at Goderich are from an ancient sea bed of Silurian age, part of the Salina Formation.
Sifto was founded by Sam Platt who was prospecting for oil in 1866, and instead of oil encountered rock salt in Goderich Harbour on Lake Huron. Sifto Canada was formed in 1950 and the company was acquired by the United States chemical company Compass Minerals in the 1990s.
Diorama of an underground salt mine in Germany. Inside Salina Veche, in Slănic, Prahova, Romania.The railing (lower middle) gives the viewer an idea of scale. Before the advent of the modern internal combustion engine and earth-moving equipment, mining salt was one of the most expensive and dangerous of operations because of rapid dehydration caused by constant contact with the salt (both in ...
The Sifto salt mine in Goderich, Ontario, the largest in the world, was opened in 1959. It taps a salt bed 30 metres (98 ft) thick 533 metres (1,749 ft) below the surface, mostly under Lake Huron. [19] The Cargill salt mine 1,700 feet (520 m) below the surface, mostly under Lake Erie at Cleveland, Ohio is similar. [20]
By surface area, Lake Huron is the second-largest of the Great Lakes, with a surface area of 23,007 square miles (59,590 km 2)—of which 9,103 square miles (23,580 km 2) lies in Michigan and 13,904 square miles (36,010 km 2) lies in Ontario—making it the third-largest fresh water lake on Earth (or the fourth-largest lake, if the Caspian Sea ...
The steamer broke down in heavy Lake Huron seas around 12:30 a.m. the morning of Sept. 26. The Ironton and the Moonlight disconnected their tow lines and drifted apart, with the Ironton crew ...
It produces over 7 million tons of rock salt per year using the room and pillar mining method. It is located half a kilometre under Lake Huron in Ontario, Canada. [16] In the United Kingdom there are three mines; the largest of these is at Winsford in Cheshire, producing, on average, one million tonnes of salt per year.
With the discovery of significant hematite mines in northern Minnesota in the late 19th century, and the construction of steel mills from the late 19th century onward in and around Cleveland, Ohio, Detroit, Michigan, and Gary, Indiana, the DeTour Passage became an essential element in one of the most significant commodity supply pipelines of the Great Lakes.