| Reference | {Deposit:: BURLINGTON NORTHERN, 1972, SILICA ROCK DEPOSITS IN THE}{Deposit:: PACIFIC NORTH WEST, RAW MATERIALS RESEARCH SECTION,}{Deposit:: INDUSTRIAL AND REAL ESTATE DEVELOPMENT DEPARTMENT,}{Deposit:: BURLINGTON NORTHERN INC. RPT 3, 121 PP.}{Deposit:: MCNARY, S. W., LOWE, N. T., ZILKA, N. T., AND OTHERS, 1989,}{Deposit:: PRINCIPAL DEPOSITS OF INDUSTRIAL MINERALS (EXCLUDING}{Deposit:: PHOSPHATE) IN IDAHO, U.S. BUREAU OF MINES.} |