U.S. GEOLOGICAL SURVEY 



GEOLOG< OF EUREKA DISTRICT PLATE I! 





Base-. 7000 fr. 



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Bu.ie-.65noft. 



RubyHill 



Base^SOOft 



Prospect Pk . 



Lovrr 

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Secret t'anat 

 Shalr 



SCALE: 1600 ft - I INCH 



GEOLOGICAL SECTIONS. 

 EUREKA DISTRICT, NEV. 



