Production:1830067b
year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1887 | G. A. Crawford | Georgetown | 560 | slope | 50 | #7 | 5 | 175 |
year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1887 | G. A. Crawford | Georgetown | 560 | slope | 50 | #7 | 5 | 175 |