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| First Page | Document Content | |
|---|---|---|
 Date: 2006-07-06 09:02:39Gold mining Economic geology Surface mining Hydraulic engineering Placer mining Fortymile River Mining Sluice Gold mining in Alaska |
| First Page | Document Content | |
|---|---|---|
Date: 2006-07-06 09:02:39Gold mining Economic geology Surface mining Hydraulic engineering Placer mining Fortymile River Mining Sluice Gold mining in Alaska |
