| Reference | {Deposit:: HARTNAGEL, C.A., AND BROUGHTON, J.G., 1951, THE MINING AND QUARRY INDUSTRIES OF NEW YORK STATE, 1937 TO 1948,: NEW YORK STATE MUSEUM NUMBER 343, P. 116}{Deposit:: KEMP, J.F., 1898, THE GEOLOGY OF THE MAGNETITES NEAR PORTHENRY, N.Y. AND ESPECIALLY THOSE OF MINEVILLE: AMERICAN INSTITUTE OF MINING AND ENGINEERING TRANSACTIONS, VOL. 27, P. 148} |