Now showing items 1-20 of 75
| Subject |
|---|
| abandoned mine lands [2] |
| acid mine drainage [6] |
| AMD [5] |
| AMD chemistry [1] |
| AMD neutralization [1] |
| AMD treatment [1] |
| AML [1] |
| Aquifers [3] |
| Archaeological Collections [1] |
| Archaeology [21] |
| Augusta Lake [2] |
| Beach Ridges [2] |
| Bloomington, Indiana [1] |
| Carbondale Group [2] |
| Coal [41] |
| Coal Quality [1] |
| Coal Reserves [1] |
| contaminated sediment [1] |
| Danville Coal Member [2] |
| Dugger Formation [3] |
Now showing items 1-20 of 75