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The Detroit salt mine is a salt mine located 1,100 ft (340 m) below Detroit, Michigan. [1] The mine opened in 1910 and covers 1,500 acres (610 ha) underground. [2] In the beginning, the leather and food industries were the primary customers. Today, road deicing salt is the primary product. [3]
Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper
View of Lake Superior from Brockway Mountain, near Copper Harbor in Keweenaw County The peninsula measures about 150 miles (240 km) in length and about 50 miles (80 km) in width at its base. The ancient lava flows of the Keweenaw Peninsula were produced during the Mesoproterozoic Era as a part of the Midcontinent Rift between 1.096 and 1.087 ...
The tailings facility at the Copperwood Mine will cover about 350 acres, roughly a mile and a half from Lake Superior just off the North Country Trail, which recently became part of the national ...
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 Jackson Mine is an open pit iron mine in Negaunee, Michigan, extracting resources from the Marquette Iron Range.The first iron mine in the Lake Superior region, [3] Jackson Mine was designated as a Michigan State Historic Site in 1956 [2] and listed on the National Register of Historic Places in 1971. [1]
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.
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