| Layton Bridge |
| Layton Tunnel. Built for the Washington Run Railroad in 1899 and converted for automobile traffic in 1933. |
Old coke ovens, mining and other abandoned industries throughout Southwestern Pennsylvania.
| Layton Bridge |
| Layton Tunnel. Built for the Washington Run Railroad in 1899 and converted for automobile traffic in 1933. |
| Beuna Vista Furnace |
| A guy climbing the Beuna Vista Furnace |
| Restored Section of the Buena Vista Furnace |
| Claghorn Bridge |
| USGS Benchmark |
| Eliza Furnace |
| Old mine building frame |