Websites about the geology of Pennsylvania, including mineral resources (such as coal and oil) and geologic hazards (such as earthquakes, sinkholes, and landslides).

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Pennsylvania Council of Professional Geologists
Serve the professional and commercial interests of member firms that provide or utilize geological services.
Pittsburgh Geological Society
Organization of professionals and amateurs. Includes meeting schedule, maps and publications on regional geology, geohazards, and other topics, issue statements, job postings, and other resources.
[Mozilla]
Last update:
February 19, 2015 at 15:28:17 UTC
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