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Geology topics

Research about Pittsburgh and Upper Freeport coal beds

Source-linked reports with geographic coverage including Pittsburgh and Upper Freeport coal beds.

1 recordsLinked to original sources

USGS1975

Map showing areas that correlate with subsidence events due to underground mining of the Pittsburgh and Upper Freeport coal beds, Allegheny, Washington, and Westmoreland counties, Pennsylvania

No abstract available.

Pennsylvania↗