Submerged cultural resources site report. Charles H. Spencer's mining operation and paddle wheel steamboat : Glen Canyon National Recreation Area / by Toni Carrell, James E. Bradford, W.L. Rusho ; illustrations by Ernesto Marinez and Jim Koza.
Santa Fe, N.M. : Submerged Cultural Resources Unit, Southwest Cultural Resources Center, Southwest Region, National Park Service, U.S. Dept. of the Interior, 1987.