Preliminary report on the clay and shale deposits of the western provinces /
Ries, Heinrich,1871-1951.
Keele, Joseph,1863-1923,joint author.
Ottawa : Government Printing Bureau,
1912.
Map folded and attached to back cover: Map 51A "Geological map of portions of Alberta, Saskatchewan and Manitoba" at scale 1:2,217,600.
Clay
Shale.