Manuscripts
Murl [sic] Emory and the ring bolt in Black Canyon
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Emory, Murl
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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Ring Bolt Rock
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
Ring bolt on boulder at Halls Crossing, left bank, Glen Canyon
Manuscripts
mssMarston papers V024/0082
