| 212220 |
Bullion, gold, produced at the mine |
| 212220 |
Bullion, silver, produced at the mine |
| 212220 |
Calaverite mining and/or beneficiating |
| 212220 |
Gold lode mining and/or beneficiating |
| 212220 |
Gold ore mine site development for own account |
| 212220 |
Gold ore mining and/or beneficiating plants |
| 212220 |
Gold ores, concentrates, bullion, and/or precipitates mining and/or beneficiating |
| 212220 |
Gold placer mining and/or beneficiating |
| 212220 |
Lode gold mining and/or beneficiating |
| 212220 |
Placer gold mining and/or beneficiating |