BULL. DEPT. 



GEOL. UNIV. CALIF 



GEOLOGICAL bFTHE 

 UP PER REGION Q F TH|M WALKE R 



VOL. 4, PL. 1 . 



LEGEND 



Alluvium 

 SUPERJACENT SERIES 



TorLion of Wabuska and 

 Wellington Quadrangles 

 From Topography of U. S. G, S 



Geology by D. T. Smith 



Later Andesite 



Tertiarti 

 Sedimentaries 



Rhyoliie 

 and Rhyolite Tuff 



Earlier Andesite / 

 BEDROCK COMPLEX 



Bp 



| Bgp | 

 Granite Porphyry 



/ 



Dike 



Schisted Dike 



y 



iron Ore 

 Ore Deposits 



Numbers de- 

 scribed in text 



