Manuscripts
Folded strata at north end of The Blade from about 222.8 Mile Point
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Fold at upper end of The Blade, Whirlpool Canyon near Mile 223
Manuscripts
mssMarston papers V136/0145

Northwest and down river from left bank, opposite end of The Blade
Manuscripts
mssMarston papers V136/0143

Riffle at the lower end of Unkar Rapid. From approximately Mile 74 1/2. Bright Angel gauge: 18,700 cfs. Characteristic is the rapidly rising strata
Manuscripts
mssMarston papers V058/0146


