Collection search - Surficial geology Medicine Hat NTS 72L. Research Council of Alberta. Base map provided by Surveys and Mapping Branch, Department of Energy, Mines and Resources; modified by Surveys Branch, Alberta Department of Highways and Transport. Cartographic editing by J.D.Root. Drawn by D.E.Jacobs. Geology by T.E. Berg, 1966, 1967, 1968. R.A. McPherson, 1970,1971. Published 1972. [cartographic material]

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