Hudak, George JHeine, John JHocker, Stephanie MHauck, Steven A2016-07-282017-04-142016-07-282017-04-142002-09Project Nos: 187-6404, 5600204 783-1049, 5601215 783-1067, 5602205 187-1600.https://hdl.handle.net/11299/187083The Needleboy Lake and Six Mile Lake areas has focused on evaluating the stratigraphic succession, hydrothermal alteration, and synvolcanic and post-volcanic structures in an effort to better understand the VHMS potential in this region of the Lower Ely Greenstone. Field mapping in the Needleboy Lake area (performed during August, 2001) investigated all outcrops within a 100 to 200 meter perimeter of the Lake. A north-south section was also completed from the north-central shoreline of Five Mile Lake to the western shoreline of Needleboy Lake. Field mapping in the vicinity of Six Mile Lake (performed August-September, 2002) included three detailed north-south traverses (Fig. 4). Traverse 1 extended from the northwestern shoreline of Needleboy Lake to the western shoreline of Six Mile Lake. Traverse 2 extended from the northeastern shoreline of Needleboy Lake to approximately 200 meters north of Six Mile Lake. Traverse 3 extended from the southeastern part of Needleboy Lake to approximately 500 meters northeast of Six Mile Lake. In addition, all outcrops occurring along roads in the study area were investigated.en-USGeological mappingNeedleboy lakeSix mile lake areaNortheastern MinnesotaVolcanogenic massive sulfide potentialVolcanic-hosted massive sulfide (VHMS)Natural Resources Research InstituteUniversity of Minnesota DuluthTechnical Report