BULLETIN 614 



SHEET 



12230' 



T 



WASHINGTON 



GEOLOGIC AND TOPOGRAPHIC MAP 



OF THE 



EXPLAN-^ 



Loose sirrface 

 A Stream deposits (alluvium) 



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K II 





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SHASTA 



ROUTE 



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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 



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GEORGE OTIS SMITH, DIRECTOR 



Wh 



Geograph 



Scale 500.000 

 Approximately 8 miles to f 



■Port 

 re 





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.6' 



1915 



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 .'Park 





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Sammamish 

 Inglewood 





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B Oatwaah ''Steilacoom gravel) fn)m retreatinj? 

 Vashon Glacier 



C Giacial drift fVashon and Osceolai. Wisomjiin 

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D Outwash ''Ortin^ >rrave! and Pir-'lup sand" 

 frtjm Admiralty Ghicior. shown by atippled 

 pattei-n 



E Glacial drift Admiralty^ pre-Wisc^"^in 

 stage, i-epresented by hvavy line 



UnderlyinR rocks 

 F I^va flows, andesit*' 



Lava flows ^andesite of Cascade Ran-r'-v 

 Miiicenr 



H Shale, Miocene 



I Sar. :. tone and aliale. with coal beds Pug. 

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EdiQh quadrangle shown on the map with a name In parenthesfs in the 

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

 Sheet of that name. 



Kilometers 



Contour interval 200 feet 



€L£VAriONS IN FEET ABOVE MEAN SEA LEVEL 



The disuryces from SeattJe, Washington. *re shown every 10 

 The crosstfes on the railroads are spaced I mih apart 



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