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About: Iron Range     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatRegionsOfMinnesota, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatMountainRangesOfNorthAmericageo:SpatialThingyago:GeologicalFormation109287968yago:Location100027167yago:Mountain109359803yago:NaturalElevation109366317yago:Object100002684yago:PhysicalEntity100001930yago:Range109403734yago:Region108630039yago:YagoGeoEntityyago:YagoLegalActorGeoyago:YagoPermanentlyLocatedEntitycityyago:WikicatRegionsOfMinnesota New Facet based on Instances of this Class

The term Iron Range refers collectively or individually to a number of elongated iron-ore mining districts around Lake Superior in the United States and Canada. Despite the word "range", the iron ranges are not mountain chains, but outcrops of Precambrian sedimentary formations containing high percentages of iron. These cherty iron ore deposits are Precambrian in age for the Vermilion Range and middle Precambrian in age for the Mesabi and Cuyuna ranges, all in Minnesota. The Gogebic Range in Wisconsin and the Marquette Iron Range and Menominee Range in Michigan have similar characteristics and are of similar age. Natural ores and concentrates were produced from 1848 until the mid 1950s, when taconites and jaspers were concentrated and pelletized, and started to become the major source of i