Showing 1 - 2 results of 2 for search '"Open-file report (Geological Survey (U.S.)) ;"', query time: 0.19s Refine Results
  1. 1
    Descriptions of four measured outcrop sections of Upper Devonian and Lower Mississippian strata in Warren and Elk Counties, Pennsylvania /
    by Schweinfurth, Stanley P.
    Published 1982
    “...Open-file report (Geological Survey (U.S.)) ;...”
    Government Document Book
  2. 2
    A reconnaissance geochemical survey of the Allegheny Front and Hickory Creek roadless areas, Allegheny National Forest, Warren County, Pennsylvania /
    by Hickling, N. L.
    Published 1983
    “...Open-file report (Geological Survey (U.S.)) ;...”
    Government Document Book
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