Middle Fork Property

HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P., (P. 58).Patton, T.C., Grant, A.R. and Cheney, E.S., 1973, Hydrothermal alteration at the Middle Fork copper prospect, central Cascades, Washington; Economic Geology, v. 68, p. 816-830.LIVINGSTON, V.E., JR., 1971, GEOLOGY AND MINERAL RESOURCES OF KING COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 63, 200 P., 8 PL., (P. 152-153.)H. K. THURBER, MICHAEL S. MILLER, AREL B. MCMAHAN, and FRANK E. FEDERSPIEL, 1989, ECONOMIC APPRAISAL OF THE ALPINE LAKES STUDY AREA AND ADDITIONS, WASHINGTON, in U.S. GEOLOGICAL SURVEY and U.S. BUREAU OF MINES, Mineral Resources of the Alpine Lakes Study Area and Additions, Chelan, King, and Kittitas Counties, Washington: U.S. GEOLOGICAL SURVEY BULLETIN 1542-E, P. 94-97.Derkey, R.E., Joseph, N.L., and Lasmanis, Raymond, 1990, Metal mines of Washington - Preliminary report: Washington Division of Geology and Earth Resources Open File Report 90-18, p. 111-112.