| Mount Vernon Furnace | |
| Coordinates: | 40.0958°N -79.5106°W |
| Built: | 1795 |
| Architecture: | Iron furnace |
| Added: | September 6, 1991 |
| Area: | less than one acre |
| Refnum: | 91001127 |
Mount Vernon Furnace, also known as Jacob's Creek Furnace and Alliance Iron Works, is a historic iron furnace located at Bullskin Township, Fayette County, Pennsylvania. It was built in 1795 and rebuilt in 1801. It is a stone structure measuring 24 feet square and 30 feet high, with two arches. It was built as a blast furnace and went out of blast in 1825.[1]
It was added to the National Register of Historic Places in 1991.