153

The country rock on the property consists of sheared tufts intruded
by an irregularly shaped stock of feldspar porphyry which is also sheared
locally. The whole is cut by dykes of various types. Development work
has been confined almost entirely to the group of claims north of the
Premier mine. The main Premier ore zone strikes northeast and passes
through the north group. The surface was drift covered and the main
ore-bodies were discovered by underground work. The main ore zone has
been followed for a distance of 3,200 feet where it enters the ground of
the Sebakwe and District Mines, Limited. At the Premier mine the cre
zone is fairly regular and is accompanied on the foot-wall side by several
parallel ore stringers distant 100 to 400 feet from the main ore-bodies. On
B.C. Silver ground the main ore zone is not ore bearing for the whole of
its length but contains a number of ore-bodies. As indicated on No. 6
level the ore zone appears to have been offset in several places by faults
with offsets up to 100 feet.

The ore, like that in the Premier mine, grades from silicified rock
containing pyrite and low values in gold and silver, to a heavy sulphide
ore consisting of pyrite, galena, and sphalerite with good values in gold
and silver. The heavy sulphide ore contains some tetrahedrite, native
gold, and, locally, silver minerals. The ore zone is everywhere highly
silicified. The ore-bodies appear to be largest where the wall-rocks are
feldspar porphyry.

The property has been developed by No. 3 adit and No. 2 adit at
elevations of 1,802 and 2,072 feet respectively. Below No. 3 adit sub-levels
have been driven at elevations of 1,672 feet (No. 4 level), 1,448 feet
(No. 5 level), and 1,348 feet (No. 6 level). Another sub-level 100 feet
below No. 6 level has been started. Ore has been found down to the
deepest level. The total length of underground work, excluding diamond
drilling, shafts, raises, and stopes, approximates 4 miles. No. 6 level 18
at the same elevation as the Premier No. 4 level and No. 3 level at the
elevation of the Premier No. 2 level.

Blue Jay Group (Locality 49)
Reference: Annual Report of the Minister of Mines, British Columbia, 1928.

The Blue Jay group of claims adjoins and lies south of the holdings
of the Premier Extension Gold Mining Company. Open-cuts expose a
silicified zone containing pyrite.

Boundary Group (Locality 43)

References: Annual Report of the Minister of Mines, British Columbia, 1911, 1917,
1918, and 1919.

The Boundary group of claims adjoins and lies northwest of the
Indian group. A pyrite-bearing quartz vein has been traced by open-
cuts and has also been crosscut by a 40-foot adit.