Coordinates for and analytical values of 486 rock, 771 stream sediment and soil, and 784 panned-concentrate samples included in the Butte 1 degree by 2 degrees Quadrangle between the latitudes of 46 degrees 00'00" and 46 degrees 30'00" N., and the longitudes of 113 degrees 30'00" and 114 degrees 00'00" W. - Campbell, W.; McDanal, S.K.; Hopkins Jr., R. (Open-File Report, 1982)