53

of comparatively low grade like the known ore-shoots. On the other hand,
though all the so far discovered ore-shoots are small, there are no apparent
reasons for supposing that no large ore-shoots exist. The sizes of the ore-
shoots seem to be related to the sizes of the containing veins and for
this reason the writer believes that though development of the smaller
veins will not meet with financial success, development of the larger veins
may disclose large ore-shoots.

VICTORIA MINES, LIMITED

The holdings of the Victoria Mines, Limited, consist of the Dandy and
Main Reef groups and are situated at the northern end of the Portland
Canal fissure zone. The country rock is argillite of the upper part of
the Bitter Creek formation. The Bear River formation overlies the
sediments on the lower part of the property and the lowest adit begins
in voleanic rock. The early development done on the Main Reef group
consists of a drift adit driven on the Main Reef vein previous to 1910.
At this early date, too, several tons of ore were shipped. Development
since the Victoria Mines, Limited, acquired the property consists of adits
developing the Main Reef vein at different places, and searching for the
northward continuation of the Sunbeam vein known on the adjoining
property to the south, and of open-cuts and adits on other veins on the
Main Reef and Dandy groups.

Several veins striking north and dipping west have been found on
the property. The Main Reef vein (No. 8 on Figure 12) is known to
be at least 700 feet long and varies from 1 to 4 feet in width. It is
exposed on the surface 100 feet above. No. 2 adit, has been drifted on for
400 feet in No. 2 adit, and is crosscut by No. 4 adit 120 feet lower. The
vein, therefore, is known to extend to a depth of 220 feet. In most places
the vein is in contact with a narrow, fine-grained dyke. The vein consists
of quartz mineralized with pyrite, galena, and sphalerite. In most places
the vein is below commercial grade, but a small shoot of ore from which
some ore has been shipped exists in No. 2 adit near the portal.

Another vein is crosscut by No. 4 adit (No. 9 of Figure 12). This
vein is 3 feet wide, is associated with a narrow, parallel dyke, and con-
sists of quartz sparsely mineralized with pyrite, galena, and sphalerite.
The vein is not known elsewhere on the Victoria holdings. Several other
quartz sulphide veins developed by short adits exist farther up the hill.
Only one of these, No. 10, is shown on Figure 12. The veins are 1 to 4
feet wide and consist of quartz mineralized with pyrite, galena, and
sphalerite. The two upper veins contain a little chalcopyrite and arseno-
pyrite, as well as the usual pyrite, galena, and sphalerite.

The development on the property consists chiefly of adits. Two of
them are 400 feet long each and seven others are individually 60 feet
or less in length. :

A 4-ton shipment of ore from the property in 1909 yielded 0-7 ounce
of gold, and 20 ounces of silver per ton and contained 23 per cent lead.
A 7-ton shipment in 1925 yielded 0-6 ounce of gold and 30 ounces of silver
per ton and contained 35 per cent lead and 10 per cent zinc.