108

have been driven along the zone, probably on the best vein matter. A pre-
mineral dyke is exposed in the drifts of the four lower adits. In these
adits the vein matter forms several ill-defined quartz veins 6 feet or so
wide and occurs also in closely spaced quartz stringers. In the uppermost

adit the thickness of solid quartz probably exceeds 30 feet. Mineraliza-
tion is very sparse, but the quartz bodies are large.

Sce/le of Feet

1/00

Le

s
E
=
=
&

Approximate
yf mineralized zone

Geological Survey, Canada.

Figure 6. Underground workings on Ben Bolt group.

Big Casino Mining Company, Limited (Locality 34)

References: Annual Report of the Minister of Mines, British Columbia, 1908 and
1910; Geol. Surv., Canada, Memoir 32.

The Big Casino Mining Company, Limited, in 1910 did some develop-
ment work on the Big Casino group of claims on the west side of Ameri-
can creek and north of the Red Cliff group. Two deposits, 15 and 35 feet
wide respectively, were uncovered. They are fissure zones containing
quartz and are sparingly mineralized with pyrite, chalcopyrite, and galena.

Bi-Metallic Syndicate (Locality 106)
References: Annual Report of the Minister of Mines, 1928, 1929, and 1930.

The holdings of the Bi-Metallic Syndicate consist of the Stimulator

group and other claims and are on the south side of Marmot river about
3 miles from its mouth.

Several quartz veins have been discovered occupying narrow shear
zones in granodiorite. The Panhandle vein is up to 6 inches wide. The