Geology of the bituminous sandstone deposits near Sunnyside, Carbon County, Utah

The bituminous sandstone deposits near Sunnyside, Carbon County, Utah, the largest known in the United States, were examined by the writers when employed by the Geological Survey, U. S. Department of the In- terior, as a collateral part of an investigation of sources of petroleum products. The field work was done by Clifford N. Holmes, Ben M. Page, and Paul Averitt during the summer and fall of 1945. An area of about one square mile enclosing the quarries of the Rock Asphalt Company of Utah was mapped by plane table on a scale of 400 feet to the inch, and a reconnaissance map of the deposits throughout an adjoining area of about 12 square miles was prepared on a scale of 2,000 feet to the inch, using as a base enlarged aerial mosaics of the Soil Conservation Service.