Reference | {Deposit:: FRAZER, PERSIFOR JR., 1880, THE GEOLOGY OF LANCASTER COUNTY,}{Deposit:: OF PROGRESS IN 1877, SECOND GEOLOGICAL SURVEY OF PENNA., CC}{Deposit:: BOTSFORD, GEO. B, WAR MINERALS MEMO., 91.1272, THE ZIMMERMAN}{Deposit:: LDIE PROPERTY, 1944}{Deposit:: HICKOK, WM., 1939, THE MINERALS OF PENNA., PA. GEOL. SURV. 4}{Deposit:: , BULL. M 18-B} |