Manuscripts
[Launching of boats at Green River, Utah; the Bert Loper, Howland's boat, and deck boat; lower Green River, Cataract and Glen Canyons, and the Colorado River above the Confluence.] (177 slides)
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[June The Bert Loper] on lower Green River? near Confluence.] (39 slides)
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Up from THE SLIDE with heavy cruiser [Developed June 1967. Bert Loper towing crippled cruiser near Confluence of Green and Colorado Rivers.] (8 slides)
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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[Developed June 1975. Inscriptions; lower Green River?; Bert Loper.] (33 slides)
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Albert & Rachel Loper - Green River, Utah to the Slide
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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The Confluence to Moab - Bert Loper, Claud Asher, A.W. Farnsworth
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
Image not available
Bert Loper, Don Harris, E.T. Eliason, Jack B. Brennan - Cataract Canyon, Green River, Utah to Lees Ferry
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers