32

and the dip ranges from 30 to 40 degrees to the southeast. It may be
followed down the east bank of the stream for a distance of 200 feet. The
vein width ranges from 2 to 6 feet and the average is about 24 feet.

A channel sample was taken across 18 inches of unmineralized quartz
at the upper showing and assayed only a trace in gold and silver. A
second channel sample collected across a 2-foot vein width, 75 feet south,
assayed as follows: gold, 0-10 ounce a ton; silver, 1-73 ounces a ton; lead,
0-67 per cent. In this vicinity the vein is well mineralized with pyrite,
sphalerite, and galena.

At an elevation of 2,900 fect a 70-foot adit was driven east from the
stream bed to intersect the vein continuation. Twenty-two feet from the
portal entrance a shear zone striking north 70 degrees east and dipping
30 degrees south was met in the roof of the adit, but instead of following
this the crosscut was driven more northerly. The shear zone in the roof
may be the same in which the vein is enclosed on the surface a short dis-
tance to the north.

Seventy-five feet to the south a second adit was driven to intersect
the vein. At 60 feet, an 8-inch shear zone was intersected and drifted
on for 15 feet. The shear zone strikes north 35 degrees east and dips 40
degrees southeast. It is bounded on the east by a diorite dyke and con-
tains very little quartz.

About 125 feet below the lower adit and on the strike of the surface
trace of the vein a strong quartz vein is exposed in a trench. A channel
sample collected here across 18 inches of the white quartz showed no trace
of either gold or silver.

Coin Claim

The Coin claim, owned by Jack Bell of Terrace, is on the southwest
slope of Thornhill mountain about one mile northeast of the Williams
Creek bridge and half a mile east of the Lakelse Lake road.

A quartz vein occurs in granodiorite at an elevation of 800 feet. It
strikes south 80 degrees east and dips 30 degrees northeast into a steep
slope. The vein is exposed for a distance of about 80 feet and has an
average width of about 14 inches. Midway along the vein exposure a
20-foot adit has been driven. On the face of the adit the granodiorite
above the vein has been altered over a width of 3 feet. It is bleached
and silicified and is impregnated with fine-grained pyrite. Microscopic
examination shows plagioclase and microcline feldspars to be almost entirely
altered to sericite. A 20-inch channel sample collected across this material
above the vein gave the following assay: gold, 0-02 ounce a ton; silver,
0-27 ounce a ton. Five feet to the south on the west wall of the adit a
20-inch channel sample was taken across a comparatively unmineralized
part of the quartz vein. The assay showed 0-01 ounce of gold, and 0:06
ounce of silver a ton. A grab sample was also taken near the entrance to
the adit where the vein is well mineralized with pyrite, galena, and sphalerite.
The sample assayed 0-02 ounce of gold and 1-04 ounces of silver a ton.