Manuscripts
Down at head of Brown Betty Rapid, Mile 212.3
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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
Manuscripts
mssMarston papers V007/0185

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

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

