| Ross Furnace | |
| Coordinates: | 40.3258°N -79.0906°W |
| Built: | 1842 |
| Architecture: | Iron furnace |
| Added: | September 6, 1991 |
| Area: | less than one acre |
| Refnum: | 91001142 |
Ross Furnace is a historic iron furnace located at Fairfield Township, Westmoreland County, Pennsylvania. It was built in 1842, and is a stone structure measuring 25 feet square at the base and 30 feet high. It has a triangular work arch and Roman blast arch. It remained in blast until about 1850–1855.[1]
It was added to the National Register of Historic Places in 1991.