Geological map of Clearfield County.

Geological map of Clearfield County to illustrate report of progress H7. By H. M. Chance, 1883. Julius Bien & Co. Photolith. New York. Lane S. Hart, State Printer. Grand atlas, Division I, Part I. Sheet no. XII.

Geological Survey of Pennsylvania

1883

1885

Second Geological Survey of Pennsylvania

1:120 000

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