Abstract Colorado Plateau River Guides (CPRG) is an organization of professional river guides that work and recreate on the rivers of the Colorado Plateau. Established in 1993, the organization conducts river education seminars, participates in river protection issues, and produces a journal called The Confluence. The collection contains a variety of membership materials including membership forms, dues, surveys, and ballots. One will also find articles and research...

Abstract The Elbert M. Dansie digital photograph collection consists of images documenting a 1948 trip down the Colorado River.

Abstract The Clyde Eddy book (1929) is entitled Down the World's Most Dangerous River and contains marginalia written by Mary Virginia Carey. This book was gifted to Mary by her brother Vincent who took part in the Eddy Colorado River expedition. Included in the collection is a typescript of the marginalia located within the book.

Abstract The copied Nathaniel Galloway papers [photocopies] (1898-1960) consist of a diary which Galloway kept during a river expedition on the Colorado River as well as newspaper accounts and a letter describing the diary. Nathaniel Galloway was a famous river explorer and boatman.

Abstract The Ken Sleight papers (1966-2000) consist of a study titled, Following Powell in Cataract which details the two expeditions of John Wesley Powell and Sleight's experiences tracing Powell's route in Cataract Canyon.