HIBBARD M J 1960 BDRK GEOL PETRGYCHOPAKA MT,OK CO.WA UNPUBDUNIV WASHHUNTTING M T 1956 WA DIV MINES GEOL BUL 37RINEHART C D,FOX K F,JR,1972 GEOL MIN DEPS LOOMIS QUAD OK CODIV MINES GEOL BUL 64USBM WFOC UNPUBLISHED DATA FROM MIN PROP FILESWILSON N OTHERS USBM RI 3694 SOMEREFRACTY PROPS WA CR,1943