Born-Digital or AnalogAnalogTranscriptU.S. Mines, bureau of Steps up work on strategic metals. Uranium & Modern Mining Sept. 1956 v.3 #9 p.8 Core library of ore samples established at Federal Center. Post Apr. 7, 1957 p.20A Minerals boost state economy,, $347 million in 1960. RMN Jan 10, 1961 p.16 Reorganization will expand Denver office. Post July 4, 1963 p.40CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
