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Ocean Shipping Marcona International, S. A. <br />Marcona Carriers, Ltd. <br />Utah Shippers, Inc. <br />Copper Island Copper Nine, B.C., Canada <br />Cyptus Pima `fining Company <br />Other ?fining Properties Western and Eastern United States <br />011 and Natural Gas United States and Canada <br />Land Development California, Colorado, Oregon <br />Construction Activities United States <br />HISTORY OF THE TRAPPER MINE <br />Exploration drilling operations began in 1954 to obtain geologic information on the <br />structure of coal beds and estimates of mineable coal reserves. In 1973, a thicty- <br />five year contract was signed between Utah International Inc. and the participants <br />in the Craig Generating Station for coal deliveries to power two 400 megawatt <br />electric generators. The construction of the first of three thirty-cubic-yard <br />walking draglines started in February, 1976. The Shop and Warehouse buildings were <br />completed in November of 1975, while the office complex was completed in November <br />of 1976. Actual mining operations began in April, 1977, with initial coal <br />deliveries beginning August 10th, 1978 for Unit IF2 of the Craig Power Plant. <br />