AREAI-Mouth of CotumbiQ R. thru Klickitat R.WashA 

 AREA H-Mouth of Columb(a R. to Deschutes R.Oregon. 

 k^__REAni- Above Klickitat R. to Grand Coulee Dam, Was^U~■ 

 AREA EZ-De sc hu t es R, to Snake R. 

 AREA 1- Snake R, mouth thru Grande Ronde R. 

 AREATZI-Snake R., above Gronde Ronde R. thru Payette R. 

 AREATZn-Snoke R., above Payette R. to Upper Solmon Falls 



COLUMBIA 



RIVER 



SYSTEM 



SCALE 



50 



Fij^ure 1» Coltcnbia River System 



