131 



EXHIBIT 6 



MAP OF COLUMBIA RIVER SYSTEM SHOWING AREA 

 ACCESSIBLE TO SALMON AND STEELHEAD 



'X^ 



N A D A 



Historically Inaccessible 



Access Blocked 



lurrenrly Accessible 



Source: PNRBC 1972 wuh addition! 



LOST PRODUCTIVITY 



River Miles Blocked 

 River Habitat Degraded 

 Estuary Habitat Lost 



Columbia 

 Basin 



17% 

 High 

 40% 



Puget 

 Sound 



J /o 



Medium 



70% 



< I /o 



Low 



<40% 



