Notes: | "Base map modified from U. S. Geological Survey preliminary topographic map, House Rock Spring NE quadrangle, Arizona." "The aerial photographs used for photogeologic interpretation were taken in June and September 1953 and June 1940." "Stratigraphic column for this area modified from Am. Assoc. Petroleum Geologists Bull., v. 39, pp. 2515-2524, 1955; Geol. Soc. America Mem. 61, 1954; U. S. Geol. Survey Prof. Paper 220, 1950; Carnegie Inst. Washington Pub. 492, 1938; and U.S. Geol. Survey Prof. Paper 164, 1931. Geographic field data from U.S. Geol. Survey prelim. topo. map, House Rock Spring NE quadrangle, Ariz."
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