Manuscripts
Garth Marston in Horn Creek Rapid. Bright Angel gauge: 11,400 cfs
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Garth Marston running Hance Rapid. Bright Angel gauge: 27,200 cfs
Manuscripts
mssMarston papers P004/0163

Garth Marston holds the "Sandra" at the foot of Hance Rapid. Bright Angel gauge: 27,200 cfs
Manuscripts
mssMarston papers P004/0165

John Harper in the sadiron "Mexican Hat III." Top of Horn Creek Rapid. Bright Angel gauge: 8,750 cfs
Manuscripts
mssMarston papers V066/0072


