Bulletins. 1103. Geology and uranium-vanadium deposits of Monument Valley area, Apache and Navajo Counties, Ariz, [with selected bibliography], by Irving J. Witkind and Robert E. Thaden; with sections on Serpentine at Garnet Ridge, by Harold E. Malde and Robert E. Thaden; and Mineralogy and paragenesis of ore deposit at Monument no. 2 and Cato Sells Mines, by Donald H. Johnson.