boatman's quarterly review - Grand Canyon River Guides
boatman's quarterly review - Grand Canyon River Guides
boatman's quarterly review - Grand Canyon River Guides
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Aerial photo of Crstal Rapid at 92,000+ cfs taken June 29, 1983. Photo: Rudi Petschek<br />
Insert aerial photo of Crystal at approximately 75,000 cfs taken in early July, 1983. Photo: Joanne Nissen<br />
boatman’s <strong>quarterly</strong> <strong>review</strong> page 27