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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 |
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Podcast Surface Tour Brochure... | Podcast Surface Tour Brochure...DocID: 1aIJV - View Document |
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| The Southern Leases – Zinc Corporation and North Broken Hill Consolidated (NBHC) The Zinc Corporation The Zinc Corporation has its origins in the problem of treating sulphur rich ores at Broken Hill. The surface ores wDocID: YxeZ - View Document |
| Junction Mine (Browne’s Shaft) The Junction Mine is a good example of the smaller mines developed along the Line of Lode. The company held Mining Lease 39, taken out by Penglass and Carson trading as the “Great NorthDocID: XYii - View Document |
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