288 GEOLOGICAI^ SUEVEY OF THE TERSITOEIES. 



great uniformity, which can be very well noticed, as it is conveniently 

 opened to some depth at a number of points. 



The Grand Army mine, located west of Gunnell, with a strike of about 

 east 22° north, may be only a spur or portion of the deflected Gunnell 

 lode, although the connection has not been traced thus far. 



The Prize lode, located to the southwest of Gunnell, at one time en- 

 joyed! a considerable reputation, but was not working, however, while I 

 was there. Its strike is somewhat out of course, being east 32° north. 



Crossing Nevada Gulch, and traveling over southward, we reach 

 another, locality that abounds in lodes, some of which are quite large, and 

 have proved remunerative, while others have been — perhaps temporary] y — 

 abandoned. This locality is Quartz Hill, so named from the numerous 

 little quartz crystals that have been and are still found there in the de- 

 composed granite. A long, narrow hill, it stretches along, sloping off 

 gently from west to east, more steeply on its two sides. Where the 

 steepest ascent from the north has been completed, where the gneiss 

 stops and granite sets in, there we find the first vein — the Kansas lode. 

 As most others, this lode is divided into a number of claims, owned by 

 various individuals and corporations. It is mainly of the claim worked 

 by the Kansas Mining Company that I shall speak. Taking the entire 

 Kansas lode, its course is about east 3° north, until it deflects about 8° 

 southward, near the Waterman shaft. • 



Along its entire course it is a contaot-vein, between gneiss on the 

 north and granite on the south side, keeping a tolerably even thickness 

 of the vein, but varying in tlie angle of the southerly dip from 10^ to 

 30°. The thickness of the vein is between 3 and 4 feet, with a good 

 body of ore, which receives and sends out quite a number of shoots from 

 and into either wall, while some cross the main vein ; and in this case 

 the intersections prove, as a rule, to be richer than the other portions. 

 Converging in one direction are the Camp Grave, (which joins the Kan- 

 sas as Waterman shaft,) the Kansas, and the Burroughs, but whether 

 they actually do come together and form one strong vein — what miners 

 would term a " mother-lode" — seems doubtful. S'ear the eastern end of 

 the Kansas, Tascher's claim is located, with a shaft of 90 feet in depth, 

 just about having gone through the surface-©re and reached the unde- 

 aomposed material. The vein is 4 feet to 5 feet wide here, with a south- 

 ward dip of about 120, stiU continuing on eastward. West of Kansas 

 claim is the Waterman shaft, which dips at about 20° to the south, re- 

 taining its character as a contact- vein. 



Minerals found in the Kansas are identical with those from the lodes 

 previously spoken of, the only diiierence being that the cubical form is 

 almost exclusively the only one for pyrite. Sphalerite begins to grow 

 a little more abundant than it was in the central portion of the mining- 

 region. The ore of this lode is said to jield good pay, containing an 

 appreciable quantity of gold. 



South of the Kansas, running almost parallel with it, is the Monte 

 Cristo Lode, having its course entirely in gneissic granite, striking east 

 7° north, with the dip almost vertical. A number of small veins, of in- 

 ferior thickness, come in to the main one from the southeast. About 

 90 feet west of the shaft, the vein splits into two of somewhat unequal 

 size, which seem to remain separated, the gap between them widening 

 with increasing depth. Two hundred and ten feet the shaft has been 

 sunk, and at that depth the vein is found to concentrate its ore, which 

 is more loosely distributed through it higher up into a body of pyrite 

 and chalcopyrite 9 to 10 inches thick. The ordinary width between walls 



