GEOLOGICAL REPORT. 69 



this ore, was brought to the surface, where it has since been left 

 exposed to the rains and atmospheric influences. It is chiefly 

 an oxide and sulphuret of iron and copper, but not very rich 

 in the latter mineral. 



&quot; In most of the other shafts sunk at this mine, the ore was 

 found in the state of green carbonate ; but this was generally 

 in a deposit of fragmentary chert. 



&quot; Dr. King arrives at the conclusion that this would be an 

 extremely valuable copper mine if properly worked. 



&quot; Copper Hill. No work has been done here since Dr. Lit 

 ton examined it. 



&quot;Bleeding Hill, in S.W. of N.W. qr. Sec. 4, T. 38, R. 2 W., 

 was examined by Mr. Engelmann. A few shallow shafts have 

 been sunk here, chiefly through red clay and chert. 



&quot; The ore is found in small fissures in 2d Sandstone, and 

 consists of green and blue carbonate, sulphuret, and some 

 scales of virgin copper, commingled with a great deal of earthy 

 brown hematite. No systematic mining has been done here, 

 but much useless labor has been spent. 



&quot;In Sec. 22, T. 40, B. 2 W., some excavations have been 

 made, but only small fragments of blue and green carbonate 

 have been found. A few pieces have also been found on Huzza 

 and Crooked creeks. 



&quot; Copper, in small quantities, was found in Phelps county, in 

 the lead cave on Piney, above mentioned. 



&quot; In Sec. 23, T. 28, R. 16, in Wright county, Mr. Hough 

 found small particles of green carbonate of copper disseminated 

 through the calcareous spar which here abounds in the Magne- 

 sian limestone.&quot; 



&quot; Stanton Copper Mine, T. 40 N., R. 2 W., Sec. 2, where 

 mining was commenced by the present company, in 1851, and 

 has been continued to the present date, without interruption. 



&quot; This mine is in the spur of a ridge, the course of which is 

 about N., 70 E., terminating, at its eastern extremity, in a 

 valley. In most places, this ridge is covered with soil, with now 

 and then, on its top and sides, an exposure of rock. As we 

 pass from its eastern extremity, along the top of it, we find no 

 other rock than Magnesian Limestone, in place, until within 



