30 



TABLE 2. Mean flows (cfs) between successive spring and fall estimates of trout 

 populations in the Hildreth Section of the Beaverhead River between 

 1966 and 1976. Range of average daily flows in parenthesis. 



Fall to Fall No. of Days 



Mean Flow Mean Flow (cfs) Mean Flow (cfs) 

 (cfs) Irrigation Nonirrigation 



112 

 261 

 377 

 292 

 394 

 467 

 316 

 200 

 97 



230 

 336 

 347 

 356 

 421 



126 

 439 



