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On July 26, 2022 at 1:47:38 AM UTC, Gravatar ckanadmin:
  • Updated description of Mesabi Range Documented Mine Shafts from

    The Mesabi Range Documented Mine Shafts coverage is a point shapefile conprising detailed information on documented natural iron ore mine shafts on the Mesabi Iron Range. Shafts are vertical or inclined passages from ground surface to underground orebodies that allow access/egress of people and materials and provide for mine ventilation and dewatering.\r\n
    to
    The Mesabi Range Documented Mine Shafts coverage is a point shapefile comprising detailed information on documented natural iron ore mine shafts on the Mesabi Iron Range. Shafts are vertical or inclined passages from ground surface to underground orebodies that allow access/egress of people and materials and provide for mine ventilation and dewatering.