INTRODUCTION. xT 



mines are in the Mariposa grant, and have all been idle since 1865, because 

 of mismanagement. The New Britain has yielded $52,000; the Sherman, 

 $200,000; the Hite's Cove yields $150 per ton; and the Potts' Mine, 

 $50,000 annually. 



In Tuolumne County, the Soulsby yields $100,000 annually; the Piatt 

 has paid $40,000 profit ; the Grizzly has produced $125,000; the Excel- 

 sior, $300,000 ; the Sell & Martin, $150,000 ; the Tennessee, $60,000; the 

 Austrian, $100,000 ; and the Sophia, $45,000 ; the total yield of the App, 

 the Rcist, the Ileslep, and the Golden Rule have not been reported, but 

 they are doing a large amount of work, and are all valuable. 



The Morgan Mine, on Carson Hill, in Calaveras County (according to the 

 statement of Thomas Dear, who is reputed to have better opportunities of 

 knowing than anybody else), produced $2,800,000 from February, 1850, 

 to December, 1851. Mr. Stevenot, however, who claimed an interest in 

 the mine, though he did not succeed in the courts, says the sum was 

 $1,500,000. At any rate, immense masses of gold were found, and the 

 town of Melones, at the foot of the hill, was the largest mining camp in 

 the State for a time. For sixteen years the title was in litigation and the 

 mine in idleness. Work has been resumed lately. The South Carolina 

 has yielded $400,000; the Reserve, $100,000; the Bovee, $600,000; 

 Hil"s Mine, $250,000; and the Cherokee, $100,000. 



The Hayward Mine, in Amador County, has been reported to be the 

 most profitable mine in the State. About 24,000 tons are crushed in a 

 year, and there are 120,000 tons in sight. The present supply of ore is 

 obtained 1,200 feet below the surface, and 300 feet below the level of the 

 sea. The total yield, according to rumor, which no doubt exaggerates 

 greatly, has been $6,000,000, The Keystone, a mile and a half distant, 

 pays $80,000 a year in dividends. The Oneida, a mile and a half distant 

 in the other direction, has produced very large sums, and has in sight 

 90,000 tons of rock, expected to yield about $17 per ton. The total 

 expense is about $5 per ton. The Seaton Mine has yielded $100,000. 



In El Dorado County, the richest mines have been the Pacific, which has 

 yielded $500,000; the TVoodside, which yielded $12,000, in specimens; 

 the Danes and the Shepard. 



In Placer County, the Harpending, the Green Emigrant, and the 

 Schnable, are the most notable. 



In Nevada County, the Eureka, reputed to be the best worked mine in 

 the State, has yield $1,500,000; the North Star, $500,000 profit; the 

 Allison, $2,300,000; the Massachusetts Hill, $5,600,000 ; New York Hill, 



