Oliver Iron Mining Company; United States Steel Corporation1928 mapbook featuring both open pit and underground mining operations on the Mesabi and Vermilion Iron Ranges of Minnesota.JPEGengOliver Iron Mining Company; United States Steel CorporationPublicOliver Iron Mining Company Mapbook, Mesabi and Vermilion Iron Ranges, MinnesotaMapsMinnesota--BuhlMinnesota--ChisholmMinnesota--ColeraineMinnesota--ElyMinnesota--EvelethMinnesota--GilbertMinnesota--HibbingMinnesota--Mountain IronMinnesota--SoudanMinnesota--TowerMinnesota--VirginiaMinnesota1928University of Minnesota