1968. Chart of Protection prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:250,000 (... Wallace, McHarg, Roberts and Todd.
1993. Hobbs, Howard C. and Meyer, Gary N. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an... Minnesota Geological Survey.
1999. Berg, James A., Harris, Kenneth L., and Knaeble, Alan R. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an... Minnesota Geological Survey.
1999. Berg, James A., Harris, Kenneth L., and Knaeble, Alan R. Quaternary (glacial and stream sediment) stratigraphy of the upper Minnesota River basin, Minnesota, scale 1:200,000. Minnesota Geological Survey.