Search Results for the EPA National Library Catalog

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Your Search: (SUBJECT=Geology Pennsylvania Clearfield County.)


 
 
 
Select Item Title Year Published
Geology and mineral resources of the Blandburg, Tipton, Altoona, and Bellwood quadrangles, Blair, Cambria, Clearfield, and Centre Counties, Pennsylvania / 1989
Geology and mineral resources of the Hazen, Falls Creek, Reynoldsville, and Dubois quadrangles, Clearfield and Jefferson Counties, Pennsylvania / 1978
Geology and mineral resources of the northern half of the Houtzdale 15-minute quadrangle, Pennsylvania / 1968
Geology and mineral resources of the Philipsburg 7 1/2-minute quadrangle, Pennsylvania / 1974
Geology and mineral resources of the Ramey and Houtzdale quadrangles, Clearfield and Centre counties, Pennsylvania / 1977
Geology and mineral resources of the Sabula and Penfield quadrangles, Clearfield, Elk, and Jefferson Counties, Pennsylvania / 1976
Map of the Mercer clay and adjacent units in Clearfield, Centre, and Clinton Counties, Pennsylvania 1964
Oil and gas developments in Pennsylvania in 1971 / 1972
Oil and gas developments in Pennsylvania in 1975 / 1976
Revised lithostratigraphic nomenclature of the Pottsville and Allegheny groups (Pennsylvanian) : Clearfield County, Pennsylvania / 1969

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