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The mineral deposits are silver-bearing quartz veins that contain also
lead and copper minerals. Scheelite is also reported. The main ore-body is
a quartz vein which for the most part lies in a fault fracture. The strike
of the fracture curves from southwest to west and finally to northwest.
Along the northwestern part of its course it dips southwest, coincides in
strike and dip with the country rock, and tends to lose its identity. Along
the part striking westerly the dip is south, and along the southwesterly
striking part it is southeast. The vein that occupies the fault fracture thus
has the form of a southerly plunging anticline. The vein in some places is
as much as 6 feet thick but in most of the stopes it is 1 to 3 feet thick.
Its greatest proved length is in No. 4 adit and is 320 feet. Its extension
down the dip is known to be greater than 500 feet. The angle of dip varies
from 10 to 35 degrees. The vein is crossed by normal faults of small throw.
Some of the faults follow the bedding planes of the argillite and in these
cases the western side of the faults has been downthrown 2 to 12 feet.
Others strike approximately north. The part of the fracture followed by
the vein that makes an angle with the strata is not everywhere a single
fracture but in places branches. In some places, also, the fracture abruptly
changes direction to follow the bedding planes for a few feet to where it
abruptly changes back to its original strike. The fracture along the north-
westerly course parallels the bedding in most places but here and there
crosscuts the bedding at low angles. The vein follows all the changes of
direction exhibited by the fracture.

The vein consists of quartz and ankerite holding arsenopyrite, pyrrho-
tite, pyrite, chalcopyrite, sphalerite, galena, tetrahedrite, ruby silver, native
silver, probably polybasite, and other silver minerals. The ore in many
places occurs in bands of almost solid sulphide that commonly lie along
the hanging-wall of the vein. The high-grade ore consists of zinc blende,
tetrahedrite, and silver minerals with some pyrite, arsenopyrite, pyrrhotite,
and galena. The best ore shoot was located on the axial part of the fold-
like structure.

The source of the mineralization is assumed to be underlying bodies of
the Coast Range intrusives. Judging from the presence of scheelite the
source is at no very great depth. There appear to be two types of veins
present, one being barren quartz or pyrite-quartz veins and the other carry-
ing sphalerite, tetrahedrite, and silver minerals. In No. 1 adit a 2-inch
vein of typical high-grade ore cuts across, at a small angle, a barren quartz
vein. It may be that there is an early series of valueless quartz veins and
a later series of ore-bearing sulphide-quartz veins.

The main mine workings are adits driven west along the vein and
the ore has been stoped from above them. The surface of the ground in
the vicinity of the mine rises along a northwesterly direction. The axis
of the fold-like structure exhibited by the main vein plunges south at an
angle steeper than the slope of the valley side. As a result the axial
portion of the vein approaches the surface as the hillside is ascended and
it may be that the axial part of the vein outcrops above No. 2 adit. If
this is so, the highest adit, No. 1 adit, has been driven along the southwest
limb of the fold, that is to the west of the axial portion that at this level
has been eroded away. Though the discovered ore shoot lay along the