30

crosscut. Near the shaft there is 118 feet of drifting along the hanging-
wall vein. From the shaft a crosscut runs east for another 435 feet and
cuts the No. 8 vein 400 feet east of the shaft or 1,280 feet east of the portal
of the main adit.

Most of the ore mined during the 1911-1922 period of activity came
from the No. 4 vein and from the No. 7 main vein and hanging-wall vein.
Some ore was taken from open-cuts on the No. 1 and No. 8 veins. There is
a stoped zone 230 feet in length above the drift level on the No. 4 vein.
Above the drift on the main vein, 250-foot level, a stoped zone 150 feet in
length in the vicinity of the shaft, and 90 feet of stoping on the adjacent
hanging-wall vein were seen.

The old Silver Standard mill on Twomile Creek about 2 miles by road
from the mine is now in a dilapidated condition. During its active period,
the ore was hauled from the mine to the mill by trucks and lead and zinc
concentrates were made for shipment. As a rough test of the mill’s efficiency
three samples were collected for assay from a quartz tailings dump measur-
ing about 50 by 100 by 6 feet, which lies on the southeast side of the build-
ing. The tailings consist of quartz fragments with from 2 to 3 per cent
of sulphides, mostly from 4 to 4 inch in diameter, with 30 per cent of finer
ground quartz. A 30-inch channel sample taken from a hole dug at the
centre of the dump assayed: gold, 0-025 ounce a ton; silver, 7-05 ounces a
ton; lead, 0-56 per cent; zinc, 1-27 per cent. From a hole dug 35 feet
from the southeast side of the dump, a similar 30-inch channel sample was
collected, which assayed: gold, 0-03 ounce a ton; silver 7-79 per cent;
lead, 0:66 per cent; zinc, 1-78 per cent. A grab sample taken 1 foot
below the top of the dump 40 feet from the mill and assayed for gold and
silver only, gave: gold, 0-035 ounce a ton; silver, 7-64 ounces a ton. On
the north side of the mill another 30-inch channel sample taken from a hole
at the centre of a second somewhat smaller tailings dump assayed: gold,
0-025 ounce a ton; silver, 7-19 ounces a ton; lead, 0:56 per cent; zine,
3°81 per cent.

No. 1 Vein. The No. 1 or most westerly vein, at elevation 1,400 feet,
is traced along the surface for 500 feet by a number of open-cuts (See
Plate II). The vein strikes north 42 degrees east and dips 65 degrees
southeast. It ranges from 8 inches to 5 feet in width. Midway along the
vein, ore has been removed to a depth of 10 feet by an open-cut 35 feet
long. In the north end of the cut the vein is 3 feet wide where a raise
comes through from the lower adit. In the south end of the cut, the vein
narrows to 8 inches. An 8-inch channel sample taken here across the
vein assayed: gold, 0-545 ounce a ton; silver, 6-62 ounces a ton; lead,
0-78 per cent; zinc, 14-48 per cent; arsenic, 3-61 per cent; antimony, nil.
In a second cut 20 feet north of the head of the raise, the vein widens to
5 feet and is well mineralized. A 5-foot channel sample taken across the
vein in this cut asayed: gold, 0:37 ounce a ton; silver, 16:32 ounces a ton;
lead, 0-87 per cent; zinc, 18-87 per cent; arsenic, 7-33 per cent; antimony,
nil; bismuth, nil.

This vein is intersected in the lower adit at 350 feet from the portal
and is explored by a drift that runs 41 feet south and 35 feet north from
the crosscut adit. A 90-foot raise goes through to the surface from the