i About Strea 



What is a Watershed? 



A watershed is the total land area being 

 drained by a particular stream or river. 



Montana has 16 major watersheds (also 

 called river basins), which are pictured 

 below. These watersheds contain many, 

 many smaller watersheds. 



Montana 's Major 

 Watershed Basins 



Kootenai < "^H/ F^^—^ { 

 -^ \^FIathead\ Farias 



,r Ijower ) 



m 



p-:^'^--jM 



Lower 

 Missouri 



Clark l/\ J\ r" 



Fork \ K Missouri- 1 



f Upper } S'"!; 

 U, \ Clark I *'«"« < 



^ ) Fork 1 



/ Middle 

 ( Missouri 



Yellowstone 



Many smaller zvatersheds, 

 such as the Musselshell 

 River Basin shown below, 

 make up the huge Missouri 

 River watershed. 



All streams within a 

 watershed work together to 

 move water and sediment 

 downstream. 



Middle 

 Yellowstone 



Missouri 



/ ^ - 



jm^^ 



Musselshell River 

 Watershed Basin 



^ 



□ 



Forest Service 



□ U.S. Fish & 

 Wildlife Service 



State Wildlife 

 Management Area 



St" 



^ 



"^ 



fcS,. 



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