GEOLOGIC AND TOPOGRAPHIC MAP 



OF THE 



SHASTA 



ROUTE 



From Seattle, Washington, to San Francisco, California 



Base compiled from United States Geological Survey Atlas 

 Sheets, from railroad alignments and profiles supplied by 

 the Southern Pacific Company and from additional informa- 

 tion collected with the assistance of this company 



UNITED STATES GEOLOGICAL SURVEY 



GEORGE OTIS SMITH. DIRECTOR 



White 



R. B. Marshall, Chief Geographer 



1915 



Each quadrangle shown on the map with a name in parenthesis in the 

 lower left corner is mapped in detail on the U. S. G. S. Topographic 

 Sheet of that name. 



BULLETIN 614 



SHEET 12 



Sheet No // 



IZ-I30' 



CALIFORNIA 





rt'. 



Madison 



bod land 



EL eo 



Anteloge. 



^m. 



71 



■. ■* 



••tot; 



•-. 



i\ 



-. ! 



» 



•_ --■ 



Alluvium 



V 



Mullen 



CItrona 



■^uSl^.V-. 



erritt 



ri 



Fairoaks 



860 

 Ben Ah 



o 



Wa^^ 



jA^vOfe^ 



// 



Mills 



£yi^ 



Davfs 



.«<■ 



j^ 



.0 



Winters 



ooaJand) 



(Davi6i/ille) 



alsbury o 



/• 



i\ 



s. 



Perkins 



iAJluvium 



-e^r^e 



1 1 



Allendale 890, 



Dixon 



EL.Si 



^l 



\' 



'V 



Batavia 



T*^ 



\ 



\' 





'a cav il I e 



Elmira 



r 



S 



900 



is 



Cannon 



lO. 



\J 



'ramen. 

 Florin 



SS\ 



::> 



f 



Scale 500,000 

 Approximately 8 miles to 1 inch 



\ o 



?OM'ilea 



.,Uf 



I O 



10 



30KUomctcra 



>.... ^ * *- 



<*''***^'^'^'^*| 



-'J 



^-- 



«j- 



-j"^ 



;35^J^ 



VViT-i 



- 'I. 



f^acai/ifle) 



-&f''.a. 



Contour interval 200 feet 



£L£\/Ar/ONS IN F££7 aBOV£ M£aN S£A L£V£L 



Th0 distaniMS from SeatOe. Washingto/i, *r« shown «v«ry 10 milts 

 The crassties on the rAilrosds *re spaced ! mih apart 



nu 



iv 



^^.- 



j. 



i^ 



X 



ij_ 



.V-^ 



^ 



e 



.-Jb- 







M- 



op 



k*^' iP, 



■320 



j^' 



\ 



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^^T. 



^k 



— > 



.'FSfyV>i5 



rti 



yy. 



*--\ 



rvo 



rnwali 



'^//v 



EXPLANATION 

 Sierra Nevada 



Modern stream deposits (aUuviuTn) 



Gold-bearing gravels : Pleistocene 



Fragmental lavas ^chiefly andesite) ; Neocene 



Clays, sands, and gravel with some coal beds (lone for- 

 mation); Eocene 



Granite and diabase or amphibolite and related intrusive 

 rocks ; late Jurassic or early Cretaceous 



Slates, sandstone, and conglomerate ''Mariposa slate); 

 Jurassic 



Quaternary 



Tertiary 



Mesozoic 



/ 



/ 



•^ 



Zrd 



."'^i 



V 



.o 



tf<?Jv 



l+iganHill 



^^^ 



<^ 



.c 



a 



^ V 



V 



'^:i. 



s 



-■^ 



.V 



Mt.Dtabto 



Coast Ranges 



Modem stream deposits (alluvium) 



Fresh-water conglomerate, sandstone, clay, and lime- 

 stone (Orinda formation); stratified light-colored 

 pumice (Pinole tuff) ; Pliocene 



Sandstonea and shales» mostly light colored. ^Monterey 

 group and San Pablo formation at top) ; Miocene 



Sandstone with some shale and conglomerate (Tejon for- 

 mation above and Martinez formation below >: Eocene 



Lava flows (basalt, rhyoliu; , and rhyolitic tuff; 



Massive yellowish sandstone and clay shale with con- 

 glomerate at bottom (Chico formation. Upper Creta- 

 ceous) underlain by dark shale (Knoxville shale, Lower 



Cretaceous) 



Quaternary 



Tertiary 



Mesozoic 



I 



rZl3o' 



."Ini T^\-Bi< r :_T 



-.-^ xF'ri 



_^2 ^ ^ ^ . - >JJ-^k, -^^_2 ""^ J ■ -^^ \T" •-' " ^ I-.- - 



?*.:-" 



f r 



