Severson, Mark JHeine, John J2015-10-142017-04-142015-10-142017-04-142010http://hdl.handle.net/11299/187167enHighway 169Geologic mappingLeachingSulfidesRoad constructionNatural Resources Research InstituteUniversity of Minnesota DuluthGeology and Sulfide Content of Archean Rocks Along Two Proposed Highway 169 Relocations to the North Of Sixmile Lake, St. Louis County, Northeastern MinnesotaNatural Resources Research Institute Technical ReportTechnical Report