Canada. Topographical SurveyRelief shown by spot heights. Depths shown by soundings.; Includes table of distances, notes, source information and 1 inset map.; At head of title: "Department of the Interior."54 x 79 centimetersJPEGUMN_ALMA:9973974704101701engTopographical Survey of Canada (Ottawa)PublicMap of Mackenzie River : Thunder River to McPherson, Northwest TerritoriesMapsNorthwest TerritoriesCanada1923University of Minnesota