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Date: 2009-08-31 09:07:40Minnesota Soudan Underground Mine State Park Soudan Minnesota Iron ore Headframe Crusher Pyne Mine Mining in the Upper Harz Mining Geography of Minnesota Underground mining | Podcast Surface Tour Brochure...Add to Reading ListSource URL: files.dnr.state.mn.usDownload Document from Source WebsiteFile Size: 243,63 KBShare Document on Facebook |
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