| Answer | Crossword Clue |
|---|---|
| SUBLEVEL | Type of mining |
| OPENPIT | Type of mining |
| PLACER | Type of mining. |
| PLACER | Type of mining |
| PIT | Type of mining |
| OPENPIT | Type of surface mining |
| OPENPIT | Type of strip mining |
| OPENPIT | Type of mining used for near-the-surface minerals |
