Limestone conglomerate interbedded with thin-bedded dark limestone near base of Conestoga limestone, in small quarry 2 miles west of Downingtown; the conglomerate of angular fragments of white marble in a limestone matrix.
Summary
Limestone conglomerate interbedded with thin-bedded dark limestone near base of Conestoga limestone, in small quarry 2 miles west of Downingtown; the conglomerate of angular fragments of white marble in a limestone matrix.
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