DISCHARGE (CFS) AND WATER TEMP (C) 



BIG HOLE RIVER. WISDOM 



D 

 I 



8 

 O 



h 



a 

 r 

 g 



e 

 (cfs) 



4000 



3000 



2000 



1000- 



ii i iiiiiiii m liiiii i ii m iiiiii i ii m iiiiiiliiiiiiiii ii iiilii m iiiii i iiiiii iim 

 Apr 1 Apr 18 May 1 May 16 May 31 Jun 15 

 U8Q8 provisional data 



iiiiiiliiiiiiii 

 Jun 30 



Figure 2, 



Daily discharge (cfs) and mean, minimum, and 

 maximum water temperatures in the Big Hole River 

 near Wisdom, Montana from April through June 19S3. 

 Preliminary data collected by the USGS. The time 

 of grayling spawning is shown in the cross- 

 hatched black above the X— axis. 



Pa, 



