kansome] PLACER GULCH AND TREASURE MOUNTAIN LODES. 183 
Golden Fleece vein. — This is a very small and tight vein which has 
produced some rich free-gold ore. The strike of the vein is N. 75° E. 
and its dip about 75° to the south. Its width varies from a fraction 
of an inch to 6 inches, and it is unaccompanied by gouge. Although 
so small, the vein is remarkably regular and has been extensively 
stoped. As it approaches the Scotia lode it breaks up into stringers 
and grows poor. This splitting up of the vein into stringers as it 
approaches the Scotia lode is at least an indication that the latter is 
older. 1 Toward the east it bends southward and joins the Golden 
Fleece extension, a low-grade lode approximately parallel with the 
Scotia. The ore of the Golden Fleece is free gold, which occurs in 
beautiful dendritic forms made up of thin branching plates of gold 
embedded in a gangue of quartz with some pale-pink rhodochrosite. 
The quartz near the gold is usually dark colored, and this darker 
shade is apparently due to the presence of extremely minute particles 
of pyrite, galena, and sphalerite, and possibly other ore minerals. 
The gold occurs both in the quartz and in the rhodochrosite. Some 
beautiful specimens of rich gold ore from this little vein were seen in 
the possession of Mr. Hanson, of Eureka, who worked the vein for 
years. The product was all sorted and shipped as crude ore. There 
was no work in progress in 1899 when I visited the mine, but a resump- 
tion of mining was reported in 1900. 
San Juan Queen. — This is a prospect in Picayune Gulch just south- 
east of the Scotia and Golden Fleece mines. The lode strikes N. 83° E. 
and dips south about 80°. Its average width is from 3 to 4 feet. The 
ore consists of pyrite, galena, sphalerite, and a little free silver, in a 
gangue of quartz with some rhodonite. Much of the galena is very 
finely crystalline, giving a dark-gray tint to the quartz. The prospect 
has been developing for about seven years, and has shipped about 10 
tons of ore. The best-grade ore is said to cany about 5% ounces of 
gold and 180 ounces of silver. 
Toltec lode. — This is a prominent lode on the ridge east of the upper 
part of Picayune Gulch. Its course, N. 40° E., is nearly parallel 
with that of theSunnyside and the Scotia. It dips northwest at from 
50° to 60°. It has not been worked on any extensive scale and is low 
grade. In the Toltec claim the vein is in places about 60 feet wide, 
of solid quartz carrying finely disseminated pyrite, with a more heav- 
ily mineralized streak carrying galena, sphalerite, and chalcopyrite 
near the hanging wall. An upper tunnel on this claim has afforded 
some coarsely crystalline galena resembling more the ores of the Sil- 
ver Lake Basin than those usually found in this vicinity. The Toltec 
was idle in 1899, and has never emerged from the condition of a pros- 
pect. Farther southwest the vein carries abundant tetrahedrite, prob- 
ably in bunches. 
Mountain Queen mine. — Situated at the head of California Gulch, 
1 See von Cotta: Erzlagerstatten, Freiberg, 1859, p. 115. 
