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Geology
Coal mines and mining
3
Anthracite coal
1
Iron mines and mining
1
Real property
1
name
x
Geological Survey of Pennsylvania
Hart, Lane S
2
Lesley, J. P. (J. Peter), 1819-1903
2
Ashburner, Charles A. (Charles Albert), 1854-1889
1
Cambria Iron Company
1
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collection
Maps of North America
3
place
Pennsylvania
3
Cambria County
1
Cambria County (Pa.)
1
Johnstown (Cambria County)
1
Johnstown (Cambria County, Pa.)
1
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genre
Maps
3
Charts
1
Diagrams
1
Geological cross-sections
1
Geological maps
1
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publisher
Geological Survey of Pennsylvania?
2
Geological Survey of Pennsylvania
1
division
Map Division
3
type
cartographic
3
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3 results found
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Name
: Geological Survey of Pennsylvania
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Topic
: Geology
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Topic
: Coal mines and mining
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Topographical map of the coal…
Geological and topographical …
[S]econd Geolo[gical Survey o…