42 GEOLOGICAL REPORT. 



pounds of mineral have been obtained here, but no regular 

 mining has been done. 



"Hindi's Mines, in Sec. 3, T. 38, R. 2. About 500 or 600 

 pounds of ore have been obtained here. Lead has also been 

 found in many places in this neighborhood. 



" Trask and Garrison's Mines, near the middle of west line 

 of Sec. 5, T. 36, R. 2 W., have yielded from 10,000 to 15,000 

 pounds of mineral. 



"Isgrig's Mines, S.E. of N.E. qr., Sec. 4, T. 39, R. 2 W. 

 A little surface digging has been done here. 



" Sappington's Mines, N.W. qr., Sec. 1, T. 39, R. 2, were 

 opened in the spring of 1857, since which time they have 

 yielded 55,000 pounds of mineral. 



" Clark's Mines, in same section, opened in 1853, have yielded 

 25,000 pounds. 



"Darby's Mines, also in same section, were opened in 1855. 

 They have been but little worked, and have yielded 7,000 

 pounds of ore. The last three mines are situated on the same 

 hill, and were examined by Mr. Englemann. The ore occurs 

 in small crevices and pockets, in Magnesian Limestone, and dis- 

 seminated as float-mineral in red clay, and sometimes adher- 

 ing to masses of sulphuret and brown oxide of iron. 



"Railroad or Coffee Diggings are located on a spur of the 

 same ridge, in S.W. qr. of Sec. 36, on Pacific Railroad land. 

 Mining was commenced here in 1857, and 5,000 or 6,000 pounds 

 have been raised. 



"Rutledge's Mines, N.E. qr., Sec. 21, T. 39, R. 2, have been 

 occasionally worked with good success. 



"Red Hills Mines, N.E. of S.W. qr., Sec. 23, T. 4, R. 2. 

 About 400,000 pounds of lead have been obtained, mostly from 

 the red clay. A few small veins have been discovered in the 

 underlying Magnesian Limestone. 



"Hibler's Diggings, in N.E. of N. W., Sec. 35, T. 40, R. 2 W. 

 About 10,000 pounds of ore have been obtained. These mines 

 have only been worked irregularly. The ore occurs in float- 

 mineral, in the clay, in crevices and pockets, and in the form 

 of thin sheets penetrating the Magnesian Limestone. Lead in 



