Production:2738
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | L-19 | Briner & Miller | Long Point | 169 | surface | 38 | 4 |
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | L-19 | Briner & Miller | Long Point | 169 | surface | 38 | 4 |