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Hydraulic mining plan and feasibility study for an underground coal mine at mid-continent resources, inc. Middle seam in coal basin at Carbondale, Colorado | 1984-06 | Text |
1 - 25 of 1
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
|
Hydraulic mining plan and feasibility study for an underground coal mine at mid-continent resources, inc. Middle seam in coal basin at Carbondale, Colorado | 1984-06 | Text |