<4-l 



o 



o 

 o 

 o 



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u 



a 

 s: 

 u 



M J J 

 Month of Year 



Figure S, 



nedian discharge of the Yellowstone River 

 Sidney, 1936-197^ (U.S. Geological Survey 

 duration hydrograph). 



near 

 flow 



II 



