182 ECONOMIC GEOLOGY OF S1LVERTON QUADRANGLE, [bull. 182. 
have occurred largely in combination with bismuth, probably as 
a sulphobismuthite of lead and silver. In 1890 a crosscut was 
being driven to cut the extension of the Sound Democrat lode to the 
eastward. 
Hidden, Treasure, Pride of the Rockies, etc. — These claims are 
located on lodes lying radially in the angle between the Silver Queen 
and the Sunnyside Extension. They have been prospected in a small 
way and have produced inconsiderable amounts of ore. According 
to Mr. Rasmus Hanson, ore from the Hidden Treasure vein has assayed 
300 ounces of silver and 4 ounces of gold per ton. In their general 
character these lodes resemble the others of this group already 
described. The lodes at the head of Placer Gulch are exceedingly 
numerous, and those named or those indicated on the map comprise 
merely a few of the more prominent ones. 
Sound Democrat. — This also is a small mine which was being devel- 
oped in 1899. The principal lode strikes N. 20° E. and dips northwest 
about 68°. The portion of the lode now being worked is very irregu- 
lar, the ore occurring in bunches, as if the lode had been broken up 
and the parts displaced. Much of the irregularity is apparently due 
to the fact that two or more transverse or intersecting lodes occur in 
the workings. Owing to the absence of maps and the small scale of 
the present workings, it was impossible to make a satisfactory study 
of the ore bodies. In its general mineralogical character the lode 
resembles the Sunnyside. The ore shows pyrite, sphalerite, galena, 
chalcopyrite, and free gold, in a gangue of quartz and rhodonite, and 
a little rhodochrosite. A gra}^ metallic mineral occurring in minute 
particles in some of the ore is probably one of the sulphobismuthites 
of lead. Gold is the most important constituent, and occurs free in 
fine particles in the quartz and in the pyrite. Chalcopyrite is not 
abundant, and when present is regarded as an indication of the pres- 
ence of gold. The galena in the best ore occurs in such fine particles 
as to make its recognition difficult. Quartz is the principal gangue 
mineral, and often shows small vugs. In 1899 the ore of the Sound 
Democrat was being packed on burros to the upper Sunnyside mill 
in Eureka Gulch and there treated. 
Scotia lode. — This is a very prominent lode, which outcrops along 
the southeast slope of Treasure Mountain. It is probable that the 
same fissure or fissure zone crosses the Animas River and extends up 
Cinnamon Gulch and over the southeast shoulder of Wood Mountain. 
Its strike on Treasure Mountain is N. 43° E. and its dip about 75° to 
the southeast. It is occupied by a large low-grade lode, with a more 
or less black outcrop, owing to the oxidation of the rhodonite of which 
it is partly composed. Although prospected at many points, it has 
not been profitably worked. The Scotia claim has produced some 
high-grade ore, but it has come from a small transverse vein, the 
Golden Fleece. 
