Manuscripts
Ronald F. Lee, Chief of Interpretation, National Park Service, speaking at the dedication of the Visitors Center, Grand Canyon. Lee has made a boat trip on the Yampa River and on down through Whirlpool and Split Mountain
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Nathaniel Galloway, Parley - Yampa River - Whirlpool and Split Mountain
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

Louis Schellbach speaking at the dedication of the Visitor's Center; Grand Canyon
Manuscripts
mssMarston papers V168/0066.01

Louis Schellbach speaking at the dedication of the Visitor's Center; Grand Canyon
Manuscripts
mssMarston papers V168/0066.02

Louis Schellbach speaking at the dedication of the Visitor's Center; Grand Canyon
Manuscripts
mssMarston papers V168/0066.03
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Moulton Fulmer - Trip Through Yampa & Whirlpool Can
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

Francois Leydet as one of the Powell crew at the Split Mountain dedication
Manuscripts
mssMarston papers V160/0062