. . Iron Range. Iron Range. Mining . Statistics of US businesses. 2006. Mining Minnesota (US Census Bureau)Mining in Minnesota (National Mining Association)Minnesota iron mining-our communities, state and nation depend on it (Iron Mining Association)The Minerals Industry in Minnesota (US Geological Survey)Iron Ore Statistical Compendium (USGS)Iron Ore Statistics and Information (USGS)The Mesabi Iron Range (Answers.com)Iron Mining Association of Minnesota .
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