Production:91830056
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| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1884 | John Swank | Danville | 4,000 | surface | 200 |
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1884 | John Swank | Danville | 4,000 | surface | 200 |