236 GEOLOGICAL SURVEY OF THE TERRITORIES. 



forming a small dump at the mouth of the shaft. Its course is east 

 39° south, and the width between walls 3£ feet. On either side the 

 walls, even at that slight depth, are well defined, and composed of tra- 

 chyte, belonging, as in Cunningham Gulch, to No. 4. The ore mainly 

 consists of galeuite, middle to fine grained, sphalerite, pyrite, chalco- 

 pyrite, and lahlerz, almost identical with the tetrahedrite mentioned 

 above. 



THE PROSPECTER 



is another lode, near the preceding one, having a strike of east 31° 

 south, and a dip of 18° to the southwest. Wall-rocks on either side 

 are the usual trachyte, and the ore analogous to that of Excelsior. 



THE PELICAN LODE 



has a course of east 54° south, with a dip of 15° to the southwest. 

 Two shafts of 18 feet each have been sunk upon the lode. For 1,500 

 feet the outcrop has been followed and unstripped. Among a number 

 of other lodes that might be mentioned are McGregor, east 36° south, 

 with a dip of 30° southwest; Aspen, east 55° south, having reached a 

 depth of 40 feet ; a shaft sunk on the lode; Pathfinder, east 30° south, 

 curving a little southward in its course. 



A tunnel has been driven from Arastra Gulch southwestward into 

 the north face of Hazelton Mountain, with a view to cutting some of the 

 lodes cropping out on the surface. Work is being pushed at the above- 

 mentioned mines, although but few hands are beingemployed. The gen- 

 eral characterof ore is similar to that of the Cunningham mines, with the 

 exception of those located lower down in the caiion. Other lodes are 

 located in different portions of the gulch, but I had no opportunity to 

 visit them. 



Boulder Gulch is situated opposite Arastra, on the north side of the 

 Animas, and contains one lode, the Crystal, that shows gangue-rock 

 very similar to that of the Little Giant. In so far as this can be taken, 

 as an indication regarding the possible presence of the schists at some 

 depth, it is important. Gold is the main paying metal in the Crystal. 



Several localities occur, besides those mentioned, where prospecting 

 has been done and lodes have been opened. 



On Goodwin Creek, about seven miles above its junction with Lake 

 Fork, a number of veins have been claimed, and ore was taken out. On 

 the 15th of June, 1874, the 



BIG CASINO 



was located at that point on the south side of the creek, and a shaft 

 sunk. The vein runs entirely in trachyte, which is thoroughly impreg- 

 nated with pyrite. Ore has been found from the surface down, com- 

 posed of galenite, sphalerite, pyrite, and fahlerz. The gangue-rock, as 

 usual, is quartz. On the other side of the creek, the 



OURAY 



is situated, yielding ore of the same character, running in the same 

 rock. Both lodes have good walls, and are worked for silver. 



Near Baker's Park, on Mineral Creek, about four miles west of the 

 park, is the Silver Court, having a strike of about north 80° east. It is 

 situated approximately at 1,000 feet above the creek, and shows the 

 usual ores of that region. 



