HANSEN W R 1965 GEOLOGY OF THE FLAMING GORGE AREA UTAHCOLORADO WYOMING USGS PROF PAPER 490RITZMA H R 1959 GEOLOGIC ATLAS OF UTAH DAGGETT COUNTIES UTAHGEOL AND MINERAL SURVEY BULLETIN 66HANSEN W R 1961 GEOLOGIC MAP OF DUTCH JOHN AND GOSLINMOUNT QUAD UTAH WYOM USGS MISC GEOL MAP I 324