Manuscripts
John Harper in the sadiron "Mexican Hat III"
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John Harper in the sadiron "Mexican Hat III." Horn Creek Rapid
Manuscripts
mssMarston papers V066/0074

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

John Harper running the "Norm" through Bedrock after getting thrown on the left side in the "Mexican Hat IIi." Note the oar recovery
Manuscripts
mssMarston papers V075/0024
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Mexican Hat Expeditions - Sadiron Skiff Operation
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

One of the Mexican Hat Expedition sadirons in Horn Creek Rapid
Manuscripts
mssMarston papers V066/0064
