TThited States Department of the Interior 

 Oscar Lc Chapman, Secretary- 

 Fish and Wildlife Service 

 Albert Mo Day, Director 



Special Scientific Report - Fisheries 

 NOe 36 

 SURVKY OF TFIE COLUIffilA RIVER AI© ITS TRIBUTARIES 

 Part 3 

 By 



Zell Eo Parkhurst, Floyd Go Bryant and Reed So Niels on 

 Fishery Research Biologists 



CONTENTS 



Page 

 Part !• Below Bonneville Dam (excluding the Willamette River) ► 2 



in uFOQUCOXOn eo«ooeo*oo»**oo*«ooo*ao ic 



JjXSXi 01 Sol^eamS oeoo*o*o«ooooeeo«oe«eO 3 



Xne OUPVey ooo*e*oeoooo*c«eao«eeeQO 5 



Table of Obstructions and Diversions o»**ooo«ooo 20 

 Part 2o Willamette River System* o.oc 24, 



intrOdUC Xr j_0n oooouo*oo«oe«o«e«»oooo0 2.^, 



List of Streams o do*o o ooo. 27 



ITie purvey oeooeooooooooeooooooeooo .JuC 



Table of Obstructions and Diversions eooooooeoco 84 

 Part 3o Above Bonneville Dam (to but not including the 



Deschutes River) ooooo««o««oooo»« 94. 



JJl'orOClUCtl.On oooooo0o*«*»ooeooooGooo y^ 



ijxsXf ox streams ooftoooooo&oo0«oBoo*eoo yl^ 



me survey ooouoeec»eooo*oo«o*ooooo Vo 



Table of Obstructions and Diversions o oeo 100 



ijXoerauUre UXteCL oooooeoooe*«oooeo*oo«coo 102 



