Canada: Department of Mines and Technical Surveys, Circa 1961. Original edition. Paperback. 16pp. Octavo [24.5 cm] Light and dark brown printed wraps. Very good. There is a former owner's name on the front cover. There is a one inch tear in the paper at the foot of the spine. Item #19660
Contains 5 maps in the pocket at the rear. Contains an illustration of Structural units of the Muskox Intrusion, a Table of Rock Types, and a Table of Formations.