| Nemaha Valley Quarry & Mill | 2.9 mi | Stone, Crushed/Broken | Surface | Producer |
| Dubois Quarry | 16.3 mi | Crushed, Broken Limestone NEC | Surface | Active |
| Whetrock Portable 1 | 17.9 mi | Crushed, Broken Limestone NEC | Surface | Intermittent |
| Unk | 18.9 mi | Stone, Crushed/Broken | Surface | Past Producer |
| Hooper Bros. Auburn Quarry & Mill | 19.0 mi | Stone, Crushed/Broken | Surface | Producer |
| Unk | 19.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unk | 19.8 mi | Sand and Gravel, Construction | Offshore | Past Producer |
| Savanna Test Burn | 20.5 mi | Coal (Bituminous) | Surface | Abandoned and Sealed |
| Unk | 20.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unk | 20.9 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Mikkelson Sand & Gravel Pit | 22.0 mi | Sand and Gravel, Construction | — | Producer |
| Elk Creek | 24.6 mi | Niobium (Columbium) | — | Prospect |