Manuscripts
Frank Wright in Monument Creek Rapid. Bright Angel gauge: July 18: 21,000. July 19: 19,700. July 20: 18,500. July 21: 17,400
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Horn Creek Rapid. Bright Angel gauge: July 19: 19,700 cfs. July 20: 18,500 cfs. July 21: 17,400 cfs
Manuscripts
mssMarston papers P005/0230

One of the Mexican Hat Expedition sadirons in Horn Creek. Bright Angel gauge: July 19: 19,700 cfs. July 20: 18,500 cfs. July 21: 17,400 crfs
Manuscripts
mssMarston papers P005/0231

Frank Wright running the Monument Creek Rapid. Frank decided control was impossible
Manuscripts
mssMarston papers P005/0235

View up Diamond Creek; Bright Angel gauge: July 27: 18,300 cfs; July 28: 18,100 cfs; July 29: 17,400 cfs
Manuscripts
mssMarston papers P004/0234

Frank Swain in Monument Creek Rapid. Bright Angel gauge: 2,070 cfs
Manuscripts
mssMarston papers V146/0012
