102 



GUIDEBOOK OF THE WESTEEX UNITED STATES. 



stratigrapliic 



om east to west, extends westward for 2 or 3 mile 



Simi. 



swmors 



Population 748.* 



the west end of the Simi Valley. 



liills 



Los Angeles 42 miles. ^™^* ^^^ ^^^^7 «^ ^^^ ^^^^ ^^^^ ^^^^ ^^^^ 



.erosion from the upfolded beds of this aiitidhie. 



4 



northwest of the valley. 



The 

 hills 



park. 



Simi the railroad follows Aitovo Simi to Moor- 



rocks 



small stream) are chiefly consrlomcrates 



(Oligocene) formation. 



rocks also comnose the low hiUs 



on both sides of the track as far as one can see. 



An old terrace is visible on the north side of the track at the head 



>rDark. This 



Simi VaUey, north of the villasre of Mo 



Moorpark. 



Elevation 511 feet. 

 Los Angeles 48 miles. 



formed at the same 



mar 



stream 



beans. Water for irrigation is pumped from 



fruit 



W 



Simi 



formation form 



The high hiUs farthest north; in- 



cluding Oak Ridge, consist of the Vaqueros and higher beds of the 



group 



an anticlinal structure. Rem- 



terrace 



'H 



miles below Moorpark, an 

 Eis of other less prominent 

 i Valley owes its form nai 



,r 



may 



both sides. Little 

 largely to erosion. 



From Temez an 

 ley, fine distant % 

 tano Mountain ( 



Clara River, just west of Sespe Canyon. The mountain consists 

 - largely of Eocene (Topatopa) and overlying Oligocene (Sespe) beds. 

 Its southern slope is a fault scarp modified by erosion. 



North and west of San Cayetano :Mountain arc visible the Topatopa 

 Mountams, a promment range in the Santa Barbara National Forest. 

 ihis ra nge is the eastern extension of the Santa Barbara and Santa 



^ 



additions to the productive areas are being 

 made from time to time. 

 The formations involved in the geology 



and gneissic 



basal 



the Topatopa, Seape, Vaqueros, Monterey 

 (upper part), and Fernando sedimentary 

 formations. All these sedimentary for- 



mations contain oil, but the Sespe is the 

 most productive. 

 The production of the Santa Clara dis- 



hnrrelfl. The 



trict 



in 1870 was 3,600 barrels, 

 production in 1913 was 1,042,348 barrels, 

 and tlie total production of the district, 

 including that of 1913, ha.s been 16,139,943 



barrels. 



