Chandler, Val W.Miller, James D., Jr.Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of part of the Duluth Complex, scale 1:100,000.PDFengMinnesota Geological SurveyPublicBedrock geologic map of the central Duluth Complex and the western part of the Beaver Bay Complex Lake and St Louis Counties, Minnesota, M-101MapsMinnesota1999University of Minnesota