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topic
Coalfields
1
Coke
1
Gas wells
1
Geology
1
Mines and mineral resources
1
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name
Chamber of Commerce of Pittsburgh
1
Gorby, S. S. (Sylvester Scott)
1
Indiana. State Geologist
1
Krebs, Otto
1
Wm. B. Burford (Firm)
1
collection
x
Maps of North America
place
Indiana
1
Pennsylvania
1
Pittsburgh (Pa.)
1
Pittsburgh Region
1
genre
Maps
2
Geological maps
1
Thematic maps
1
publisher
Chamber of Commerce of Pittsburgh
1
Indiana State Geologist
1
division
Map Division
2
type
cartographic
2
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2 results found for:
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Natural gas
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Collection
: Maps of North America
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Maps of North America collection page
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Geological map of Indiana : s…
topic:
Natural
gas
Pittsburgh & Western Pennsylv…
topic:
Gas
wells