Manuscripts
Up to Horn Creek Rapid. Bright Angel gauge: 9,510 cfs
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Garth Marston in Horn Creek Rapid. Bright Angel gauge: 11,400 cfs
Manuscripts
mssMarston papers V066/0061

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

The Dusty Dozen lining Horn Creek Rapid. Bright Angel gauge: 2070 cfs
Manuscripts
mssMarston papers V146/0006

Swain-Hatch crew at lining of Horn Creek Rapid. Bright Angel gauge: 2070 cfs
Manuscripts
mssMarston papers V146/0002

