Jirsa, Mark A.Peterson, Dean M.Compilation of interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), mineral exploration data, western Vermilion district, scale 1:48,000.PDFengMinnesota Geological SurveyPublicBedrock geologic map and mineral exploration data of the western Vermilion district, St Louis and Lake Counties, northeastern Minnesota, M-98MapsMinnesota1999University of Minnesota