Bonnichsen, BillMap showing locations of bedrock outcrops (rock exposed at the land surface), scale 1:125,000.PDFengMinnesota Geological SurveyPublicOutcrop map of southern part of Duluth Complex and associated Keweenawan rocks, St Louis and Lake Counties, Minnesota, M-11 Outcrop map of southern part of Duluth Complex and associated Keweenawan rocks, St Louis and Lake Counties, Minnesota, M-11 Outcrop map of southern part of Duluth Complex and associated Keweenawan rocks, St Louis and Lake Counties, Minnesota, M-11MapsMinnesota1971University of Minnesota