38

Several narrower parallel veins 2 to 6 feet wide outcrop a few hundred
feet north of the large vein. The narrower veins lie mostly at the con-
tacts between dykes and intruded volcanic rocks. The veins contain
sparsely disseminated galena, sphalerite, and pyrite in a gangue of quartz,
parite, jasper, and calcite. The chief value is in gold and silver, but
most of the veins are below commercial grade.

The large vein has been traced for several hundred feet on the surface
above the adit. Where exposed in the lowest or No. 1 open-cut it strikes
northwest, but does not continue up the hill on this line of strike. Where
exposed in the next higher, or No. 2 open-cut a short distance north of
No. 1 open-cut, it has the same strike and can be followed up the hill
for several hundred feet along this line of strike. The veins exposed in
the two open-cuts appear to be identical in general appearance and are
believed to be parts of one vein offset by a fault between the two open-
cuts.

The adit beginning 320 feet below the lowest open-cut is a drift and
follows quartz stringers of no economical importance for 75 feet. It
encounters a wider part of the vein at 85 feet from the portal and follows
this for 100 feet. At 275 feet from the portal it enters another large vein
expansion which it follows to the face a distance of 210 feet. The vein
matter in the wide part of the vein is of much better grade than that
in the narrow parts. The large lens of the vein which is exposed at the
face of the adit is of better grade than the other lenses. A long crosscut
was driven northeastward from a point 275 feet from the portal of the
adit in the hopes of picking up other parallel veins, but was not successful.

The face of the adit is 320 feet below the vein in outcrop. It is evident
that a tonnage large enough to operate a 100-ton per day mill for several
years could very likely be proved. Development has proceeded far enough
to permit systematic sampling and sampling should prove definitely whe-
ther or not the vein matter can be mined with profit. As some of the
dykes in the zone of dykes are younger than the vein they will probably
interrupt it locally.

BAYVIEW MINING COMPANY, LIMITED

The holdings of the Bayview Mining Company, Limited, consisting
of the Bayview and Gold Cliff groups of mineral claims, are on the eastern
slope of mount Dolly 24 miles north of Stewart. Most of the discoveries
are near the contact of the Coast Range batholith, some within the batho-
lith, some in adjacent argillite, and some in adjacent voleanic rocks.

The lowest mineral showings on the hillside are at an elevation of
about 3,000 feet on the Gold Cliff group (See Figure 6). A vein is
exposed at this place striking northwest and dipping 45 degrees southwest.
It is 1 to 3 feet wide and has been traced by open-cuts for 200 feet. It
strikes at right angles to the batholithic contact and lies partly in the
granodiorite and partly in the adjacent voleanic rocks. Seventy feet above
and 70 feet west of the upper exposure of the vein is another vein parallel
in strike but dipping steeply southwest. This vein is 1 to 4 feet wide
and has been traced up the hillside for 500 feet.