Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
coal mines  | |
|---|---|
| BT | mines |
| .coal mines | |
| RT | mining geology |
| coal fields | |
| economic geology | |
| coal | |
| strip mining | |
| longwall mining | |
| SN | Before 1993, also search coal AND (mines or mining geology). Added to Thesaurus in 1993. |