| Reference | {Deposit:: SKILLINGS MINING REVIEW, 1980 U.S. STEEL IRON ORE}{Deposit:: SHIPMENTS FROM MINNESOTA, JANUARY 2, 1980, P. 6.}{Deposit:: SKILLINGS MINING REVIEW, U.S. STEEL IRON ORE SHIPMENTS}{Deposit:: FROM MINNESOTA JANUARY 19, 1980, P. 10.}{Geology:: MARSDEN, R.W. THE MESABI RANGE, MINNESOTA, ORE DEPOSITS OF}{Geology:: THE U.S. 1933-1967, PP. 518-537.}{Geology:: MOREY, G.B. MESABI RANGE, GEOLOGY OF MINNESOTA: A CENTENNIAL}{Geology:: VOLUME, 1972, PP. 204-217.}{Production:: WALLER, P. OF U.S. STEEL CORP.,PERSONAL COMMUNICATION, JULY,}{Production:: 1981.}{Reserve-Resource:: OPEN FILE REPORT 109-80, IRON ORE RESERVES OF THE MESABI}{Reserve-Resource:: RANGE MINNESOTA, JAN 23, 1980, PP 12 AND 70.}{Reserve-Resource:: LAMPRECHT, J. OF U.S. STEEL CORP. PERSONAL COMMUNICATION,}{Reserve-Resource:: MAY 8, 1981.} |