| Place | Type | AsNotedIn | Locale | |
|---|---|---|---|---|
| Place | Type | AsNotedIn | Locale | |
| W and E F Fitch Company Mill New Haven |
|
New Haven, CT | ||
| Stoughtonham Furnace Site |
|
Sharon | ||
| Tubal Furnace Archeological Site |
|
Chancellor | ||
| Hopewell Furnace Site, Struthers |
|
Struthers | ||
| Keystone Furnace |
|
Pattonsville |
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