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Iron mines and mining
Coal mines and mining
1
Geology
1
Real property
1
name
Cambria Iron Company
1
Fulton, John, 1826-1916
1
Geological Survey of Pennsylvania
1
Hart, Lane S
1
collection
Maps of North America
1
place
x
Pennsylvania
Cambria County
1
Cambria County (Pa.)
1
Johnstown (Cambria County)
1
Johnstown (Cambria County, Pa.)
1
genre
Charts
1
Diagrams
1
Maps
1
Topographic maps
1
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Geological Survey of Pennsylvania?
1
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Map Division
type
cartographic
1
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Topographical map of the coal…