Scale 1:250,000. This map had to be reprinted shortly after its initial release because of a significant error on the base. The reprinted map is marked on the map sheet as Corrected version.
Jirsa, M.A.; Boerboom, T.J..
M-067 Bedrock geologic map of parts of Koochiching, Itasca, and Beltrami Counties, north-central Minnesota.
Minnesota Geological Survey.
Retrieved from the University of Minnesota Digital Conservancy,
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