134 INDEX. 



Page. 



Tysch prairie, description of.. 86 



Umpqua cation, description of 107 



Urnpqua mountains, description of 34 



passes through 50 



Umpqua valley, description of 34 



railroad character of _ 50 



Upper Klamath lake, description of 66-67 



route near 67-68 



Variation of the needle, abnormal disturbance of 99-100 



Warn Chuck caiion, warm springs in 85-86, 90 



"Warn Chuck river, caiion of.. 85-86 



Washington, return of the party to 111 



Why-chus creek 75 



Willamette valley, climate of 34 



railroad character of 48 



routes through 82, 102, 106 



tables of water-courses in 48-49 



Wright lake 28,65 



Yreka, description of 110 



in 127 



