152

SALMON RIVER DISTRICT
American Mining and Milling Company, Limited (Locality 5)

References: Annual Report of the Minister of Mines, British Columbia, 1920, 1922,
and 1923

The holdings of American Mining and Milling Company, Limited,
consist of the Betty group north of Divide lake, the Sunrise group east
of Long lake, the Daly-Sullivan group, 2 miles south of Long lake, and
the Lois-Edith group northeast of Long lake.

On the Betty group a quartz vein up to 4 feet wide strikes southeast
and dips 70 degrees southwest. The hanging-wall is sheared volcanic
rocks and the foot-wall argillite. The vein and bordering silicified rock
contain pyrite, galena, sphalerite, chalcopyrite, and silver sulphide. Picked
samples have assayed 400 ounces of silver a ton. Narrow streaks of sul-
phide also occur following bedding planes of the argillite.

B. C. Bonanza Mines, Limited (Locality 13)

References: Annual Report of the Minister of Mines, British Columbia, 1919, 1920,
1922, 1923, and 1925; Geol. Surv., Canada, Sum. Rept. 1919, pt. B, and
Memoir 1382.

The holdings of the B.C. Bonanza Mines, Limited, consist of the
Spider group east of Cascade creek and a mile north of Long lake, and
the Web group adjoining and lying east of the Spider group.

The country rock on the Spider group is a stock of augite porphyrite
intruding volcanic and sedimentary rocks. Several quartz veins lie in the
augite porphyrite. The main vein is up to 20 feet wide striking northeast
and has been followed on the surface for 700 feet. It is mineralized with
galena, sphalerite, chalcopyrite, and pyrite where it intersects argillite in-
clusions in the porphyrite. The main vein is cut by a shear zone striking
west-northwest. This shear zone was followed by an adit 700 feet long
and found to contain small lenses of sulphides holding thin flakes of native
silver and consisting mainly of sphalerite, galena, chalcopyrite, pyrite,
freibergite, and argentite. Two tons of ore picked from the dump of the
tunnel assayed 0-46 ounce of gold and 384 ounces of silver a ton, 9 per
cent lead, and 13 per cent zine. Five tons of ore sorted from another vein
gave an almost identical assay.

B. C. Silver Mines, Limited (Locality 50)

References: Annual Report of the Minister of Mines, British Columbia, 1919, 1920,
1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, and 1981.

The holdings of the B.C. Silver Mines, Limited, consist of two groups
of claims adjoining and lying respectively north and south of the holdings
of the Premier Gold Mining Company. The company has confined its
efforts almost entirely to the development of its holdings, but has made
two shipments of ore totalling 1,014 tons of ore which yielded 2,000 ounces
of gold and 80,000 ounces of silver.