| Reference | {Deposit:: NEVIUS, J.N., 1901, ROOFING SLATES QUARRIES OF WASHINGTON COUNTY: NEW YORK STATE GEOLOGIST 19TH ANNUAL REPORT, P. 145}{Deposit:: DALE, T.N., 1914, SLATE IN THE UNITED STATES: UNITED STATES GEOLOGICAL SURVEY BULLETIN 586, P. 124, PL. 22}{Deposit:: SMOCK, J.C., 1888, BUILDING STONE IN THE STATE OF NEW YORK: NEW YORK STATE MUSUEM BULLETIN 3, P. 137-138}{Deposit:: LUEDKE, E.M., WRUCKE, C.T., AND GRAHAM, J.A., 1959, MINERAL OCCURRENCES OF NEW YORK STATE WITH SELECTED REFERENCES TO EACH LOCALITY: UNITED STATES GEOLOGICAL SURVEY BULLETIN 1072-F, P. 441} |