2017 Photographs of the American Indian argillite quarry at Gaddis Run, Point Pleasant, Bucks County, Pa. 

Photographs are viewed by entering the following root URL: www.impacttectonics.org/Archeology/Gaddis_Run/ into your Internet browser followed by the image number, for example: http://www.impacttectonics.org/Archeology/Gaddis_Run/3280.JPG

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