Preliminary bedrock geologic map of parts of Koochiching, Itasca, and Beltrami Counties, north-central Minnesota

Jirsa, M.A.Boerboom, T.J.2012-03-212012-03-211989https://hdl.handle.net/11299/121817Preliminary bedrock geology maps of an area of northcentral Minnesota. Explanatory text and two map sheets. Plate 1-Database; Plate 2-Bedrock geology, scale 1:250,000. Superseded by Minnesota Geological Survey publication M-67.en-USPreliminary bedrock geologic map of parts of Koochiching, Itasca, and Beltrami Counties, north-central MinnesotaReport