ransomk.] DEPOSITS OF RED MOUNTAIN REGION. 243 
noted, which faulted the ore body, throwing down the southeast por- 
tion a few inches. This, however, appeared to be a post-mineral 
fault and is probabl} 7 a late manifestation of the same faces which 
produced the earlier dominant Assuring of identical trend. 
The upper tunnel of the Saratoga has been run 1,000 feet into the 
hill. It passes through the ore and limestone into a fine-grained, 
massive andesite, and about 600 feet from its mouth cuts a strong lode 
carrying pyrite, in a gangue of vugsry, white quartz. This vein is from 
2 to 3 feet wide, striking N. 30° E., and dipping southeast at about 
85°. It is too low grade to work. Beyond the lode the tunnel passes 
through about 50 feet of iron pyrite, limestone, and quartz — all much 
shattered. This appears to be a mineralized fault breccia, disturbed 
by later movement. On the southeast of this shattered zone is andesitic 
Tetfunde conglomerate ^iv^V^v q: 
Algonkian quartzite 
Pig. :.';!.- Diagrammatic east and -west section, illustrating in a general way the occurrence of 
ore in the Saratoga mine. 
breccia, but owing to the gas in the end of the tunnel it was found 
impossible in 1899 or 1900 to make any further observations. 
It is to be noted thai (t. E. Kedzie 1 has interpreted the form of the 
Saratoga ore body in a different manner from thai set forth in the 
foregoing pages. His section is herewith reproduced (fig. 22). This 
same section is also given in Phillips and Louis's Treatise on Ore 
Deposits, although these authors remark that there seems to have 
been hardly enough work done to pronounce very positively as to the 
character of the ore body. 2 At the time of Kedzie's visit the mine was 
more accessible throughout, but not enough ground had been exploited 
upon which to base all the details of his section. Thus his "upper 
JThe bedded ore deposits of Red Mountain mining district, Ouray County, Colo.: Trans. Am. 
Inst. Min. Eng., Vol. XVI. 1887-88, pp. 570-581. 
2 A Treatise on Ore Deposits, J. Arthur Phillips, second ed, rewritten and enlarged by 
Henry Louis, London, 1896, p. 163. 
