PITTSBURGH GEOLOGICAL SOCIETY

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    • Mission and History
    • Board of Directors
    • Awards and Honors
  • Membership
    • Join or renew
    • Donate to PGS
    • Code of Conduct
  • Job postings
  • Events
    • 2025 Student Night
    • Summer 2024 field trip photos
  • For Students
    • 2025 Field Workshop
    • 2025 Student Night
    • PGS Scholarship
  • Our Sponsors
    • Corporate Sponsors
    • Geologic Consultants
  • Resources
    • Maps and Diagrams
    • Publications >
      • PGS Newsletters
      • PGS Field Guides
      • PALS Brochures
    • Geologic Web Links
    • Local Geo-Hazards
  • Contact Us
  • Home
  • About Us
    • Mission and History
    • Board of Directors
    • Awards and Honors
  • Membership
    • Join or renew
    • Donate to PGS
    • Code of Conduct
  • Job postings
  • Events
    • 2025 Student Night
    • Summer 2024 field trip photos
  • For Students
    • 2025 Field Workshop
    • 2025 Student Night
    • PGS Scholarship
  • Our Sponsors
    • Corporate Sponsors
    • Geologic Consultants
  • Resources
    • Maps and Diagrams
    • Publications >
      • PGS Newsletters
      • PGS Field Guides
      • PALS Brochures
    • Geologic Web Links
    • Local Geo-Hazards
  • Contact Us

Geologic  Maps  and  Diagrams

Bedrock Geology Map of Allegheny County
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Schematic Cross-section ​of Pittsburgh's Golden Triangle
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Stratigraphic ​Column of Western Pennsylvania ​
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Pennsylvania Geologic Map
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Geologic Time Scale
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PGS is proud to be an affiliated society with the AAPG. 
Webmaster - Daniel Harris

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