Search Results for the EPA National Library Catalog

Items Found: 9
Showing: Items 1 - 9
Your Search: (SUBJECT=Geology Pennsylvania Allegheny County)

Select Item Title Year Published
Geology of the Pittsburgh area / 1970
Greater Pittsburgh region construction aggregates / 1974
Greater Pittsburgh region properties and uses of clays and shales / 1976
Ground-water resources of valley-fill deposits of Allegheny County, Pennsylvania, 1949
Map of rock types in bedrock of Allegheny County, Pennsylvania / 1975
McDonald and adjacent oil fields : Allegheny and Washington Counties, Pennsylvania. 1949
Oil fields of the Greater Pittsburgh region / 1976
Some geological factors affecting the Upper Freeport coal and its quality / 1961
Summary, ground-water resources of Allegheny County, Pennsylvania / 1973

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