Manuscripts
Across Rapid No. 1 in Cataract Canyon. Across to right bank and slightly upstream. Approx. gauge: 25,000 cfs
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Across head of rapid no. 1; Cataract Canyon, approximate gauge 25,000 cfs
Manuscripts
mssMarston papers P006/0764

Approx. Mile 203.5 in Cataract Canyon. Approx. gauge: 29,700 cfs
Manuscripts
mssMarston papers P006/0315

Tail of Rapid No. 1 and with Rapid No. 2 in distance. Approximate gauge 25,000 cfs
Manuscripts
mssMarston papers V007/0207

Approx. Mile 205, Cataract Canyon. Preliminary gauge: 29,700 cfs
Manuscripts
mssMarston papers P006/0316

