National Carbon Company Historical Marker Portal in Birds Nest Ohio United States
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 1 |  National Carbon Company Historical Marker | PS AX PS PS | -- | 8 | 8 | 85% | 141 |
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 1 | National Carbon Company Historical Marker | PS AX PS PS | -- | 8 | 8 | 85% | 141 |