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You searched for: Format pdf (Portable Document Format) Remove constraint Format: pdf (Portable Document Format) Keyword pags progress reports Remove constraint Keyword: pags progress reports Publisher Pennsylvania Bureau Of Topographic And Geologic Survey Remove constraint Publisher: Pennsylvania Bureau Of Topographic And Geologic Survey
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  1. Sand and Gravel in the Altoona Region, Pennsylvania

    Resource Type: Book
    Creator: Ward, Freeman
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:10Z
  2. Probability of Occurrence of the Oriskany Sandstone in the Tioga Region

    Resource Type: Book
    Creator: Stanley H. Cathcart and Bradford Willard
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:10Z
  3. The Topographic and Geologic Survey: A Brief Summary of its Work since 1919

    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. Sand and Gravel in the Reading Region, Pennsylvania

    Resource Type: Book
    Creator: Ward, Freeman Ward
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:10Z
  5. Sand and Gravel in the Scranton Region, Pennsylvania

    Resource Type: Book
    Creator: Ward, Freeman
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:08Z
  6. Mineral Resources of the Lower Allegheny - Beaver River District

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:07Z
  7. Pennsylvania, the Makings of a World Power

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:07Z
  8. High Spots in 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: 2014-09-25T00:39:07Z
  9. Anthracite Culm and Silt

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:06Z
  10. The Canadian System

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:06Z
  11. A Stratigraphic Time Scale

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania and Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:05Z
  12. A Practical Classification of Coals

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:04Z
  13. Silurian Stratigraphy at Lehigh Gap, 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: 2014-09-25T00:39:04Z
  14. Coal Reserves in Jefferson County, Pennsylvania

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Location: Jefferson County, Pennsylvania, United States
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:03Z
  15. The Age and Origin of the Earth

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania and Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:03Z
  16. Coal Reserves in Clarion County, Pennsylvania

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Location: Clarion County, Pennsylvania, United States
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:02Z
  17. Coal Beds in Northern Somerset County, Pennsylvania

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Location: Somerset County, Pennsylvania, United States
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  18. Roofing Granules Industry in Southeastern Pennsylvania

    Resource Type: Book
    Creator: Stone, R. W.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  19. Volatile Matter in Pennsylvania Coals

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  20. The Living Earth

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z