Manuscripts
Down Cataract Canyon from above head of The Brown Betty Rapid at the left bank. The Brown Betty Rapid heads at Mile 212.30 and drops 4 ft. in .15 miles
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Ellsworth Kolb in USGS skiff in the Brown Betty Rapid, No. 1. The Brown Betty Rapid heads at Mile 212.3 and drops 4 ft. in .15 miles
Manuscripts
mssMarston papers V007/0197
Rapid No. 1 in Cataract Canyon. The head of Rapid No. 1 is at Mile 212.30 and the drop is 4 ft. in .15 miles
Manuscripts
mssMarston papers V007/0189
Harris-Brennan motorboat at head of Brown Betty Rapid. Mile 212. Cataract CAnyon
Manuscripts
mssMarston papers V007/0219
Harris-Brennan motorboat at head of Brown Betty Rapid. Mile 212.15. Cataract Canyon
Manuscripts
mssMarston papers V007/0221
Cataract Canyon Rapid No. 43 which heads at Mile 184.1 and drops 7 ft. in 15/100 miles
Manuscripts
mssMarston papers V017/0009
