Manuscripts
The first Separation Canyon plaque placed by the Rusty [sic] Dozen in 1934 and replaced in 1939 by the party which cruised up Lake Mead with Julius Stone
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Cruise - Temple Bar, Separation Canyon - Replacing 1934 Plaque
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




