Mary Ann Furnace Historic District
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LocationCentennial Road southeast of Longswamp, Longswamp Township, Pennsylvania
Area9 acres (3.6 ha)
Built1789
Mary Ann Furnace Historic District | |
 Mary Ann Furnace Historic District in Longswamp Township, Pennsylvania | |
   | |
| Location | Centennial Road southeast of Longswamp, Longswamp Township, Pennsylvania |
|---|---|
| Coordinates | 40°29′5″N 75°38′54″W / 40.48472°N 75.64833°W |
| Area | 9 acres (3.6 ha) |
| Built | 1789 |
| Architectural style | Iron furnace |
| MPS | Iron and Steel Resources of Pennsylvania MPS |
| NRHP reference No. | 91001141[1] |
| Added to NRHP | September 6, 1991 |
The Mary Ann Furnace Historic District, also known as Trexler's Furnace, is an historic iron plantation and national historic district located in Longswamp Township in Berks County, Pennsylvania.
It was listed on the National Register of Historic Places in 1991.[1]
