151

Washington Group (Locality 110)

References: Annual Report of the Minister of Mines, British Columbia, 1921, 1926,
and 1927; Geol. Surv., Canada, Memoir 109.

The Washington group is at an elevation of 3,800 feet on the south
side of the south fork of Marmot river. The country rocks are lava flows,
tuffs, and breccias of the Hazelton group, underlain on the lower part of
the property by argillites. The sediments and voleanic rocks strike north-
west and dip northeast at moderate angles. The batholith contact passes
less than a quarter of a mile west of the adit.

Four vertical, roughly parallel, rusty, sheared zones striking north and
50 to 100 feet apart are imperfectly exposed on the surface. The widths
of the mineralized parts are not clearly defined, but rusty, sheared rock is
6 feet wide in some places. Pyrite, galena, sphalerite, and perhaps tetra-
hedrite, occur in the zones, but are not plentiful perhaps because of the
oxidized nature of the outcrops.

The rusty zones are in volcanic rock and have not been traced south-
ward into the sediments. The theory is held by the management that they
are offset by a fault, a short distance north of the sedimentary volcanic
contact. Northwesterly striking faults dipping northeast are numerous,
but the offsets seen rarely exceed 5 feet. An adit 100 feet below the lowest
mineralized shear zone has been driven eastward to crosscut the mineral
zones. It is over 400 feet long, but does not penetrate any shear zone nor

any ore. The zones are either cut off by a fault or they do not extend down-
ward as far as the adit.

Windsor Group (Locality 83)
References: Annual Report of the Minister of Mines, British Columbia, 1924 and 1930.

The Windsor group of claims is on the west side of Bromley glacier
at the head of Bitter creek. The main vein is up to 18 feet wide and con-
sists of quartz and argillite containing much pyrite and a little galena and
sphalerite. Values in gold up to 0-6 ounce a ton have been obtained.
Another vein, also in argillite, is up to 18 inches wide and contains galena
and sphalerite. It is reported to carry good values in silver.

Wire Gold Group (Locality 101)
References; Annual Report of the Minister of Mines, British Columbia, 1912 and 1924.

The Wire Gold group of claims is on the north side of Marmot river
about 2 miles from its mouth. A pyrite-bearing quartz vein in granodiorite
has been followed by a 40-foot adit. The vein is up to 2 feet wide but is
very sparsely mineralized.