Region
Allaire
1
Allaire (N.J.)
1
America
1
Atsion (N.J.)
1
Bat
1
Batsto
2
Batsto (N
1
Batsto (N.J.)
1
Berks Co
1
Berks County
6
Berks County (Pa.)
3
Birdsborough (Berks County, Pa.)
1
Blair County
2
Blair County (Pa.)
2
Braintree
1
Braintree (Mass.)
1
Buffalo
1
Burlington Co
1
Chesapeake and Delaware Canal (Del. and Md.)
2
Chester Co
2
Chester County
6
Chester County (Pa.)
4
Connecticut
1
Conshohocken
1
Conshohocken Metropolitan Area
1
Cornwall
3
Cornwall (Pa.)
1
Coventry
1
Dauphin County (Pa.)
2
Duluth
2
Duluth (Minn.)
1
Elizabeth
1
Elk Forge
1
Elkton
2
Elkton (Md.)
2
Evansville
1
Frederick Co
1
Great Britain
6
Hopewell Furnace National Historic Site (Pa.)
4
Hopewell Village National Historic Site
1
Indiana
2
Iron industry and trade
1
Johnstown
1
Johnstown (Cambria County, Pa.)
1
King George Co
1
King George County (Va.)
1
Lancaster Co
3
Lancaster County
4
Lancaster County (Pa.)
2
Lebanon Co
2
more ...