114

Two quartz veins occur on the property. The veins are parallel, 200
feet apart, strike north, and dip 50 degrees west. The more easterly vein
is 6 to 30 feet wide and has been traced by open-cuts for 500 feet. The
other vein is 6 feet wide, is not known on the surface, and only in one place
underground. The veins consist chiefly of quartz and a little calcite and
are sparsely mineralized with pyrite, galena, sphalerite, and jamesonite.
The smaller vein is a single body, but the larger one in places where it is
widest consists of closely spaced quartz veins separated by argillite. The
quartz, like that in other veins in the vicinity east of the Portland Canal
fissures zone, is habitually drusy. The ore minerals are disseminated
through the vein, but not.in sufficient quantity to constitute commercial
ore.

The underground development consists of three adits driven in an
easterly direction to cut the large vein. The upper adit is a crosscut for
125 feet where it enters the large vein. A drift follows the vein for 60 feet.
A fault with strongly marked horizontal grooves is the east wall of the vein
in this adit. The next adit 200 feet southeast and 10 feet lower than the
upper adit is 30 feet long and is little more than a large open-cut on the
large vein. The lowest adit 650 feet southwest of the upper adit and 180
feet lower is 500 feet long and reaches the smaller vein at 270 feet from
the portal and the large one at the face. On this adit a fault with hori-
zontal grooves is the west wall of the smaller vein. This fault is west of,
and parallel to, the one in the upper adit.

Excelsior and Eagle Claims (Locality 91)

References: Annual Report of the Minister of Mines, British Columbia, 1905 and
1928; Geol. Surv., Canada, Memoir 32.

The Excelsior and Eagle claims are south of the south fork of Glacier
creek. There are two roughly parallel veins, up to 2 feet wide, in augite
porphyrite on the Excelsior claim. They consist of quartz and siderite
carrying pyrite, sphalerite, galena, tetrahedrite, and stibnite. At another
place a northerly striking shear zone up to 6 feet wide contains high-grade
vein matter up to 1 foot wide.

Excelsior Prospecting Syndicate (Locality 3)

References: Annual Report of the Minister of Mines, British Columbia, 1929, 1930,
1931, and 1932; Geol. Surv., Canada, Sum. Rept. 1931, pt. A.

The holdings of the Excelsior Prospecting Syndicate consist of twenty-
four claims, mainly on the east side of American creek near its head.

The main deposit has been traced by widely spaced open-cuts and is
apparently 1,500 feet or more long and up to 20 feet wide. It consists of
argillaceous limestone streaked and impregnated with sulphides at the con-
tact with a large body of intrusive feldspar porphyry. The open-cuts
when examined were not deep enough to expose unoxidized material, but
pyrite, galena, and sphalerite could be seen in the oxidized material. Sev-
eral large oxidized outcrops occur on the property. The various mineral
showings contain local high values in silver and also values in lead and