near dayton nevada the company con trols one of the larger proven iron ore re serves in the western united states geologi cal studies mine layout and beneficiation pians are essentially complete and emphasis has been directed toward the development of a suitable market current sales negotiations are aimed at exporting one million tons of beneficiated iron ore products annually additional expenditures of $ 1 074,858 were madeon mineral development and exploratory activities in areas which offer worthwhile eco nomic opportunities at tolerable levels of risk construction utah closed the year with its backlog of uncompleted work divided almost equally between domestic and over seas locations joint venture participations in the san luis dam and the san luis canal two primary units of california's central valley project and the wells hydroelectric project on the columbia river washington will replace the nearly completed taum sauk pump storage facility in missouri results at round butte dam near madras oregon have been very disappointing work there has been accelerated however and is expected to be finished ahead of schedule in the sum mer of 1964 the norad underground defense center near colorado springs colo rado and minuteman facilities at warren air force base wyoming are progressing smoothly and are expected to be near com pletion toward the end of the coming fiscal year the company completed three industrial construction projects this year the gladding mcbean sand plant at lone california the expanded ore processing facilities for the pima mill in arizona and the kennecott copper grinding mill in utah rounding out the company's building activities in cali fornia were the alameda county heliport garage in downtown oakland barrows hail a nine-story building for the university of california berkeley and a fifty-bed hospital building at castle air force base work was completed this year on the yan hee dam in thailand the karnafuli hydro electric project pakistan the comilog railway in the congo and several of mar cona's new mine and mill facilities at san middle installing minuteman silo liner warren air force base wyoming left laying foundation for irrigation control gate oued nebaana dam tunisia