Manuscripts
Gray Canyon
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Across Gray Canyon from mouth of Three Fords Canyon on the right bank
Manuscripts
mssMarston papers V118/0069
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Gray Canyon (Coal Canyon)
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

End of Gray Canyon. Named by Powell from the color of its walls
Manuscripts
mssMarston papers V118/0150


