18 



sandrocks of the Potsdam period. We visitpd this place 

 last spring. A shaft has been sunk to about twenty feet, 

 and the mine abandoned, the ore being scattered through, 

 the rocks and no regular veins ; indication unfavorable. 



The following list, from the Mining Review, of Denver, 

 of June 10, 1876, embraces nearly all the shafts in the 

 West, that have been sunk to a depth of 500 feet and over, 

 on veins worked mainly for the precious metals : 



State or 

 Territory. 



California. 



....do.... 



....do... 



....do... 



....do... 



....do... 



....do... 



....do... 



....do... 



....do... 



-'...do... 



....do... 



....do... 



Kevada . ^ 



....do... 



....do... 



....do... 



do. . . 



....do... 

 ....do... 



do. . . 



....do... 

 ....do... 

 ....do... 

 ....do... 

 ....do... 

 ....do... 



do. . . 



do. . . 



....do... 



Place. 



Grass Valley. . 



do 



do 



do 



Bear Valley. . 



do... .. 



Grass Valley. . 

 Amador co. . . 



Silver Mt 



Bear Valley . . 



Amador co 



El Dorado co.. 

 Deer Creek . . . 

 Virginia City. . 



do 



....do 



....do 



....do 



....do...... 



....do 



....do 



....do 



....do 



....do 



....do 



Pioche 



....do 



Eureka 



....do 



....do 



Metal. 



Gold. 



..do. 



..do. 



..do. 



..do. 



..do., 



..do., 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



Silver 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



..do.. 



Name of Mine. 



Empire 



North Star 



Eureka 



Idaho 



Pine Tree 



Princeton 



N. Y. Hill 



Consol. Amador 



Pennsylvania 



Josephine 



Mahoney 



St. Lawrence 



Providence 



Hale & Norcross . . . . 



Imperial Empire 



Savage 



Best & Belcher 



Gould & Curry 



Bullion 



Crown Point 



Belcher 



J ulia 



Consol. Virginia 



Ophir 



California 



Meadow Valley 



Raymond & Ely 



Richmond Consol . . . 



Eureka " 



K. K. " .■■ 



Depth 



1400 

 1300 



1300 



1200 



1100 



900 



800 



900 



800 



700 



700 



500 



500 



2200 



2200 



2000 



1800 



1750 



1700 



1700 



1600 



1600 



1600 



160® 



1600 



1350 



1300 



1200 



1100 



900 



