58 



o 



£ .50 



SPRING, 1975 

 SPRING, 1976 



20 30 40 



DISTANCE (MILES) BELOW DAM 



FIGURE 14. Mean weights (lbs) of age II brown trout in a series of study 

 sections in the Beaverhead River in spring, 1975 and spring, 

 1976. 



