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  1. Geologic Structure in the Plateaus Region of Northern Pennsylvania and its Relation to the Occurrence of Gas in the Oriskany Sand

    Resource Type: Book
    Creator: Cathcart, S. H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:18Z
  2. Gas in the Oriskany Sand of Potter County, Pennsylvania

    Resource Type: Book
    Creator: Cathcart, S. H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:14Z
  3. Mineral Resources of Pennsylvania

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:10Z
  4. Preliminary report: geology and mineral resources of Donegal Quadrangle, Pennsylvania

    Resource Type: Book
    Creator: M.N. Shaffner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:57:33Z