Date: 2016-06-20 07:41:35Geology of Minnesota Economic geology Iron mining Mesabi Range Taconite Cliffs Natural Resources Iron ore Iron mining in the United States Natural Resources Research Institute Iron Range Red Iron HullRustMahoning Open Pit Iron Mine | | MarchExplore Minnesota: IRON ORE Minnesota’s iron ore operations have a production capacity of about 40 million tons of high-grade iron ore annually, which is approximately 75 percent of total U.S. iron oreAdd to Reading ListSource URL: files.dnr.state.mn.usDownload Document from Source Website File Size: 839,71 KBShare Document on Facebook
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