Region
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Braintree (Mass.)
1
Buffalo
1
Burlington Co
1
Chester (Comté)
1
Connecticut
1
Conshohocken
1
Conshohocken Metropolitan Area
1
Cornwall (Pa.)
1
Coventry
1
Coventry (Pa.)
1
Duluth (Minn.)
1
Elizabeth
1
Elk Forge
1
Evansville
1
États du Moyen-Atlantique (États-Unis)
1
Frederick Co
1
Hopewell Village National Historic Site
1
Iron industry and trade
1
Johnstown
1
Johnstown (Cambria County, Pa.)
1
King George Co
1
King George County (Va.)
1
MArtha
1
Manheim
1
Marietta (Pa.)
1
Martha
1
Middle Atlantic States
1
Montgomery Co
1
Montgomery County (Pa.)
1
Moriah
1
Moriah (N.Y.)
1
Northampton Co
1
Pennsy
1
Philad
1
Philadelphi
1
Pine Barrens (N.J.)
1
Pine Grove Furnace (Pa.)
1
Pine Grove Iron Works
1
Pitt
1
Pittsburg
1
Prince William County
1
Prince William County (Va.)
1
Ralston (Pa.)
1
Reading
1
Reading Furnace Farm (Pa.)
1
Redington
1
Ringwood
1
Robesonia (Pa.)
1
Schaefferstown
1
Scranton
1
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