UNITED STATES GEOLOGICAL SURVEY 



SILVER-LEAD DEPOSITS PL 



VERTICAL CROSS SECTION N° 5, EUREKA MINE, THROUGH I.J. 



Prospect Mi Linv - 



. it. ' Z i. . Workings projected 



Prospect Ml Crushed .—.-iivrim, on the Se 



Quartsite Lunesione L»w»to«' Ore F.ssures with Ua> 



Scale 20U El 1 Inch 



