304 GEOLOGICAL SURVEY OF THE TEREITOEIES. 



two other men, while trying to find a trail across the range. It was 

 first worked in September, 1872, by Archer & McFadden, the present 

 owners. The lode strikes south 65° west ; dip, north 25° west ; angle, 

 75° to 85°. Two levels were commenced in the fall of 1872. The east 

 level, in September, 1873, had penetrated 150 feet. It is 5J feet high, 

 4 feet wide at the bottom, and 3^ feet at the top. It is propped with 

 timber, being but 30 feet below the surface. The lode is from 2 to 3 feet 

 in thickness, and is in gneissic rock. The west level had been carried 

 in 150 feet, and the average width of the lode here was 2 feet. 

 This level penetrates the solid rock some distance below the sur- 

 face, and propping is rendered unnecessary. Below these levels, 

 two tunnels have been started to strike the lode. . One is 100 feet below, 

 and the other 300 feet. Assays made by M. M. Hayes, assayer, for the 

 Homestake district, vary from $100 to $800 to the ton. One picked 

 specimen assayed 738 ounces to the ton. The ore is principally argen- 

 tiferous galena in a gangue of baryte and calcite. There is also a trace 

 of gold. The complete list of minerals fount! here will be seen in the 

 catalogue of minerals. In September there were nine men employed, 

 at $3.50 per day. From Mr. J. A. McFadden, one of the owners of the 

 mine, I learned that the expenses from May to September, inclusive, had 

 been something over $3,000. This included building of cabins, supplies, 

 &c. The mine having been just opened, of course the expenses were 

 heavier than they would be afterward. Up to September, 30 tons of 

 ore — about half the quantity taken out — had been shipped to Denver. 



ARKATs^SAS VALLEY. 



On the Arkansas Eiver, in the vicinity of Granite, there are quite a 

 number of placer-diggings, and also in Colorado Gulch, one of the west- 

 ern branches of the Arkansas. During the season of 1873, there were 

 two or three claims worked in the latter place, yielding about $5 per day 

 to each man. This gulch, in 1863, was one of the richest in the Terri- 

 tory, yielding $75 per day to the man. 



ELK MOUNTAIN DISTRICT. 



This is a new district in the Elk Mountains at the head of Eock Creek, 

 and little has been done beyond the locating of claims. There are about 

 thirty claims situated on the south side of Eock Creek. The discovery 

 was made in 1871 by Messrs. Brennan, Brant, Graham, and others, but 

 nothing was done until 1872. The lodes are all in the beds of Cretaceous 

 age — black metamorphosed slates, containing quantities of Inocerami. 



The following are the principal lodes : 



Buclceye. — This lode was discovered July 29, 1873. It is from 5 feet 

 to 6 feet in width, and dips 12° south 35° east. It is well defined for at 

 least 1,000 feet. The one is principally argentiferous galena, associated 

 with pyrite, cerussite, chalcopyrite, malachite, and a little hematite 

 in a quartz gangue. Blow-pipe analyses, made by Mr. Kirker, yielded 

 75 to 100 ounces of silver per ton. 



D. P. lode. — This was discovered July 29, 1873. It is 4 feet in width, 

 and its direction is southeast and northwest. Ore and gangue as in the 

 Buckeye. 



Fair Flay. — The discovery was made July 20, 1872. Its width is about 

 6 inches. The ore is similar to that in the other mines, and is contained 

 in a gangue of quartz associated with calcite. 



Liverpool.— Tlim lode was discovered August 1, 1872. It is 2 feet 



