J.D. Jorgenson 2006 Summary: This report is derived from a presentation the author presented in late September at the Iron Ore 2005 Conference sponsored by The Australasian Institute of Mining and Metallurgy and held in Fremantle, Western Australia. Some slight revisions have been made for the new audience. application/pdf 10.3133/ofr20061061 en U.S. Geological Survey Challenges facing the North American iron ore industry reports