Blocks of Red-River type Ordovician dolomite collected from drift to be used as building stone. Campus, University of Saskatchewan. Unidentified person in picture.
Looking across folded upland of Liddon Gulf (left) and Sabine Bay, Melville Island. In the foreground is a syncline with strata dipping inwards. Erosion here has left a central ridge. Note how the large river has cut right across the fold. 1 Aug. 1950; 20,000 feet.
Glory hole, Ruby Gulch Mine, Little Rock Mountains. Dark yellow green rock under trees to the left is Precambrian amphibolite schist. To the right of this is white veined syenite (Tertiary), to right of this is the Ruby shear zone (gold) in the syenite and farther to the right is syenite with pyrite.
Map showing the close correlation between present topography and geologic structure in the Dominguez Hills oil field, California (Thornbury, 1956, p.583)