Isabella Furnace | |
 The furnace in ruins in 1959. | |
   | |
| Nearest city | Brandywine Manor, Pennsylvania |
|---|---|
| Coordinates | 40°6′48″N 75°49′23″W / 40.11333°N 75.82306°W |
| Area | 4 acres (1.6 ha) |
| Built | 1835 |
| Architectural style | Iron furnace |
| MPS | Iron and Steel Resources of Pennsylvania MPS |
| NRHP reference No. | 91001135[1] |
| Added to NRHP | September 06, 1991 |
Isabella Furnace was a cold blast charcoal iron furnace located in West Nantmeal Township, Pennsylvania. The furnace was named for Isabella Potts, wife of one of the partners, a member of the Potts ironmaking family. Isabella was the last iron furnace to be built in the county, in 1835, and was operated by members of the Potts family and their partners until 1855, when they lost control of it in a bankruptcy. It returned to the family in 1881, when it was purchased by Col. Joseph Potts (nephew of Isabella), who modernized it. The furnace, the last to operate in Chester County, went out of blast in 1894, a few months after Col. Potts' death, but remained largely intact until after his son's death in 1943. The remains of the furnace complex have been listed in the National Register of Historic Places since 1991.