DEpwT OF I NTER 



U.S. GEOLOGICAL SURVEYo 

 F.V. HAYDEN in d 



:nl\p of th 

 SOV RCES OF SNi 



AHTH ITS TRIBUT.* 



looelher with portions of tke 1/ 



MADISON AND YELl^^ 



prLiu'ipallv lt\e results frc 

 durmcf thi 

 SNAKE RIVTiK EXPT; 

 reiluced from llie Preliminarv Map 

 GUSTAVUS R BEC 

 Clif Top 

 SNAKB RIVER EXPEDI' 



