Manuscripts
The "Rattlesnake" into Mile 217 Rapid. Brian Rowlands at the controls. Preliminary gauge at Bright Angel Creek: 40,000 cfs
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The "Rattlesnake" in Mile 217. Brian Rowlands at the controls. Approximate gauge: 40,000 cfs
Manuscripts
mssMarston papers P006/0495

The "Rattlesnake" heading into Mile 217 Rapid. Preliminary gauge at Bright Angel Creek: 40,000 cfs
Manuscripts
mssMarston papers V091/0079

The "Cactus" in Mile 217 Rapid. Buzz Belknap at the controls. Preliminary Bright Angel gauge: 40,000 cfs
Manuscripts
mssMarston papers V091/0077

"Rattlesnake" in Mile 217. Approximate gauge: 40,000. Brian Rowlands, pilot
Manuscripts
mssMarston papers P006/0497

At the head of Mile 217 Rapid. Preliminary gauge at Bright Angel: 90,500 cfs
Manuscripts
mssMarston papers V091/0065
