. COAST LIFE LOS ANGELES TO SAF FEAXCISCO. 97 



At the top is the solar observatory of the Carnegie Institution. The 

 view is extensive and very beautiful. The rocks, hkc those of Mount 

 Lowe, are liigUy crystalline. Hotels on the summit and northern 



3siblo to remain overnight on the mountam 

 Anereles olain, on which the main nart of t 



Ajigele 



:Vrc 



it in a succession of steps or terraces. As the train leaves the 

 Station the principal river terrace can be seen on the left by looking 



up some of the streets, 

 Plaza. 



just below the 



assme^ 



throuffh 



hich 



east end of the City oil field. The oil wells were drilled 



'6 



m 



ricks have been removed, enough are left to attract attention. 



mani 



River for half a mile. The river here cuts across the beds on the south 



mam 



fine section of the Miocene sandstone ( 

 The beds dip south at angles ranging from 20"" to 50"^. About 472 

 miles from San Francisco the line crosses Los Angeles River opposite 

 Elysian Park (on the hill to the left). The railroad continues up 

 the east bank past fine orchards and berry farms. The hills to the 

 right (east) are composed largely of the Miocene sandstone, folded 

 into one or more well- developed anticlines. Farther north and east 

 shales of Miocene (Monterey) age overlie these sandstones and form 

 the roUing lulls between Los Angeles and Pasadena. 



The prominent peak to the left (west) of the railroad, opposite 

 Tropico, is Cahucnga (ca-wain'ga) Peak (elevation 1,825 feet), of 



the Santa Monica Range, It consists largely of 

 Tropico. granitic roclvs, but north of the peak a thick coarse 



:Eievatioii 434 feet. conc'lomcrate lies aj];ainst the granite. South of the 



Los Angeles 6 miles. 



peak are flows and dikes of dark lava (bas 



sandstones and shales of the Monterey group. 



• t. _.. V....V .here is a strong fissnre 

 [oiith side have sunk or those on 



the north side risen. This fault probably extends westward along 



Monic 



& 



easternmost point. The central mass of the range consists largelj 

 of gneiss and black schist. Cretaceous and Tertiary rocks flank this 

 crystaUine core farther west, in the region north of Santa Monica 



96286"— Bull. 61i— 15 7 



