Production:91830304
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| year | DMM | company | production | cumulative | type | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1918 | Vermilion Heights Coal Co. | 6,000 | 300 |
| year | DMM | company | production | cumulative | type | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1918 | Vermilion Heights Coal Co. | 6,000 | 300 |