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You searched for: Author Ojakangas, Richard W. Remove constraint Author: Ojakangas, Richard W. Institution Minnesota Remove constraint Institution: Minnesota Year 1968 Remove constraint Year: 1968
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1. 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, ...