Notes, correspondence and drafts from the 1947 publication by the Utah Historical Quarterly of the Powell expeditions' journals.; Background; Papers; Correspondence, 1947; Correspondence, 1948; Correspondence with New York Public Library; Correspondence with University of Chicago; Correspondence with Library of Congress; Materials from Charles Kelly and Julius F. Stone, including pages from Robert Brewster Stanton's "The River and the Canyon"; Correspondence, 1949; Correspondence, 1950s; News articles, 1869-1872; Biographical material on Powell party members; Correspondence from members of the Powell party; Maps; Manuscript fragments Utah Historical Quarterly; Tribute to Dr. William J. Snow, Utah Historical Quarterly, vol. 15; Miscellaneous...