Manuscripts
Cataract Canyon Rapid #22 according to the Chenoweth-Hoyt table
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Rapid No. 23, Chenoweth-Hoyt table. The head is at Mile 202.20 and the drop is 9 ft. in 0.15 miles
Manuscripts
mssMarston papers V012/0231
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Manuscripts
mssMarston papers V012/0231