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1. Geologic map of Minnesota, Hibbing sheet, bedrock geology

1970. Sims, Paul K., Morey, G.B., Ojakangas, Richard W., and Viswanathan, S. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Hibbing quadrangle, ...

2. Geologic map of Minnesota, Roseau sheet, bedrock geology

1979. Ojakangas, Richard W., Mossler, John H., and Morey, G.B. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Roseau quadrangle, s...

3. Preliminary geologic map of the Vermilion district and adjacent areas, northern Minnesota, M-5

1968. Sims, Paul K., Morey, G.B., Ojakangas, Richard W., and Griffin, W.L. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) around the Vermilion area, ...

4. Shorter contributions to the geology of the Sioux Quartzite (early Proterozoic), southwestern Minnesota, RI-32, Plate 1

1984. Southwick, David L., Ojakangas, Richard W., Weber, R.E., Mossler, John H., Lively, R.S., and Morey, G.B. Generalized interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the North Limb, Cottonwo...