Production:91330002
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1934 | Columbia & Waterloo Coal Co. | Columbia | 444 | ug | 111 | 3 | ||||||
| 1935 | Valley Coal Co. | Columbia | 252 | 696 | ug | 130 | 3 |
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1934 | Columbia & Waterloo Coal Co. | Columbia | 444 | ug | 111 | 3 | ||||||
| 1935 | Valley Coal Co. | Columbia | 252 | 696 | ug | 130 | 3 |