Arcturus

SKILLINGS MINING REVIEW, 1980 U.S. STEEL IRON ORESHIPMENTS FROM MINNESOTA, JANUARY 2, 1980, P. 6.SKILLINGS MINING REVIEW, U.S. STEEL IRON ORE SHIPMENTSFROM MINNESOTA JANUARY 19, 1980, P. 10.MARSDEN, R.W. THE MESABI RANGE, MINNESOTA, ORE DEPOSITS OFTHE U.S. 1933-1967, PP. 518-537.MOREY, G.B. MESABI RANGE, GEOLOGY OF MINNESOTA: A CENTENNIALVOLUME, 1972, PP. 204-217.WALLER, P. OF U.S. STEEL CORP.,PERSONAL COMMUNICATION, JULY,1981.OPEN FILE REPORT 109-80, IRON ORE RESERVES OF THE MESABIRANGE MINNESOTA, JAN 23, 1980, PP 12 AND 70.LAMPRECHT, J. OF U.S. STEEL CORP. PERSONAL COMMUNICATION,MAY 8, 1981.