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Iron mines of the era exploited the "natural" (soft) iron-rich ores in a 15 kilometer-long stretch in the central portion of the range straddling the Michigan-Wisconsin state line. These mines were mainly of the underground shaft type, which were among the deepest iron mines in the country.
A stamp mill consists of a set of heavy steel (iron-shod wood in some cases) stamps, loosely held vertically in a frame, in which the stamps can slide up and down. They are lifted by cams on a horizontal rotating shaft. As the cam moves from under the stamp, the stamp falls onto the ore below, crushing the rock, and the lifting process is ...
Unmetamorphosed sedimentary rocks are found in the rock record from the Cambrian, in the early Paleozoic.The feldspathic quartz sandstone and orthoquartz sandstone of Chequamegon, Devils Island and Orienta formations make up the Bayfield Group which underlies the entire Lake Superior shoreline of the state from Chequamecon Bay to the St. Louis River in the west.
In the classic gossan or iron cap all that remains is iron oxides and quartz, often in the form of boxworks (which are quartz-lined cavities retaining the shape of the dissolved ore minerals). In other cases, quartz and iron oxides, limonite , goethite , and jarosite , exist as pseudomorphs, replacing the pyrite and primary ore minerals.
The Ardis Furnace is an abandoned experimental blast furnace located at the northeast corner of Aragon and Antoine Streets (accessible from US-2) in Iron Mountain, Michigan, United States. The Ardis Furnace was designated a Michigan State Historic Site in 1971 and placed on the National Register of Historic Places in 1972.
Location of Iron County in Wisconsin. This is a list of the National Register of Historic Places listings in Iron County, Wisconsin. It is intended to provide a comprehensive listing of entries in the National Register of Historic Places that are located in Iron County, Wisconsin. The locations of National Register properties for which the ...
Iron Mountain is the principal city of the Iron Mountain, MI–WI Micropolitan Statistical Area, which includes all of Dickinson County, Michigan and Florence County in Wisconsin. Iron Mountain hosts a few points of interest such as the Millie Hill bat cave [ 6 ] and the Chapin Mine Steam Pump Engine , and is located adjacent to the Pine ...
Iron Mountain Inc. (NYSE: IRM) is an American enterprise information management services company founded in 1951 and headquartered in Boston, Massachusetts.Its records management, information destruction, and data backup and recovery services are supplied to more than 220,000 customers [4] in 58 countries throughout North America, Europe, Latin America, Africa, Asia, and Oceania.