Collection search - Hydrogeological map, Edmonton area (northwest segment)- Alberta. NTS 83H - N.W. (Part) Alberta Research [Council]. Base map provided by Alberta Lands and Forests. Base map provided by Surveys and Mapping Branch, Department of Energy, Mines and Resources, Ottawa; modified by Surveys Branch, Alberta Highways and Transport, Edmonton. Hydrogeology by R. Bibby, 1973, based on data collected in 1972 and 1973. Drawn by R. Swenson and H. Dey. Cartographic editing by F. H. Smith and A. R. Campbell. Published 1974. [cartographic material]