CENTRAL AND EASTERN NEVADA. 447 



road. A small vein of gold-bearing quartz, high up on the quartzite cliffs on 

 the north side of the canon, has been worked in a small way by two miners, 

 Mr. Kinsley and his partner. Their ore is a pure, white quartz, showing small 

 stains of iron oxide and occasional specks of free gold. It was broken by hand 

 to the size of a walnut, and ground and amalgamated in a small arrastra, which 

 was run by a small overshot wheel; its capacity was about 500 pounds per 

 diem. The ore yielded by this rude process about $40 per ton. 



The main producing vein of the district is the Gilligan, which is in the 

 slates, running across the formation and probably extending into the quartzite. 

 It has a northeast and southwest strike, and dips to the northwest at an angle 

 of 60° to 70°. It crops out a hundred feet or more above the level of the 

 upper valley, on the southeast face of a round-topped hill or spur, which bor- 

 ders the upper part of the canon on the north. This vein is remarkable for 

 its uniformity, both in size and yield; it averages five to eight feet in width, 

 reaching fifteen feet in some places, and pinching to two and a half feet at one 

 point. While its average yield is about $60 per ton, richer portions go as 

 high as $200, and the second-class ore as low as $40. The ore is a white 

 quartz, more or less broken, and stained by the oxide of iron, carrying sul- 

 phurets of silver, and probably some free gold. The bullion produced is .937 

 fine, and gives, in value, two-fifths gold to three-fifths silver. The vein has 

 been followed and tested, either by surface or underground workings, for a 

 distance of 800 feet, and its croppings traced to a much greater distance. On 

 the surface it shows distinct walls on either side; in the underground work- 

 ings the hanging wall presents a very handsome and well-defined clay gouge, 

 while the foot-wall seems to lose itself in the country-rock, which is impreg- 

 nated with quartz to some distance from the vein. This vein is the property 

 of the Social and Steptoe Mining Company of New York, whose claim is 

 3,800 feet in length. This company was incorporated in September, 1866, 

 with a nominal capital of $2,000,000, being formed by the consolidation of 

 the two companies whose names it bears. It owns, besides the Gilligan ledge 

 already mentioned, a five-stamp mill, at the entrance to the canon, offices, 

 houses, and school-house in the town; a ten-stamp mill, the frame of which is 

 standing near the lower end of the caiion, while the machinery and stamps, 

 which came from the East, are at Salt Lake City, and likely to remain there; 

 also various wood claims and undeveloped ledges. 



