1954. Prokopovich, N. P. (Nikola P.) and Thiel, George A. (George Alfred), 1892-1979. Ground water map of Minnesota, scale 1:2,000,000. Minnesota Geological Survey.
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1954. Prokopovich, N. P. (Nikola P.) and Schwartz, George M. (George Melvin), 1892-1980. Mineral resources map of Minnesota, scale 1:1,000,000. Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 1 of 4 sheets, Stratigraphy (vertical and time sequence of geologic units) of Biwabik Formation, Mesabi Range, Minnesota, scale 1 inch = 11.2... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 5 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 6 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 7 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 8 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 9 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 10 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or eros... Minnesota Geological Survey.
1954. White, David A. (David Archer). Sheet 11 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or eros... Minnesota Geological Survey.