Manuscripts
Side Canon--See men in centerforeground on brink of Lower terrace. [in pencil: Probably Dark Canyon]
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View of the Wall (See men and boats on bank of river). The rapid is Dark Canyon Rapid
Manuscripts
mssMarston papers V017/0064
Dark Canyon between Youngs Canyon and the river, showing hard limestone layer heavily fossilized, probably Rico formation
Manuscripts
mssMarston papers V017/0044
Mouth of Dark Canyon. The foreground shows a flood out of Dark Canyon
Manuscripts
mssMarston papers V017/0094
