206

iron pyrites and zinc blende, but in another tunnel, lower down, the vein
was only 10 inches wide if this tunnel has really gone in far enough to strike
this vein that here cuts the schists and slates.

“ ‘Tord Dufferin’ and ‘May Flower’ are old locations farther up the
creek on which a large vein of white quartz and a little pyrites crosses the
creek. A tunnel on one side runs about 30 feet northwest along the vein,
4 to 7 feet wide, until it is cut off by a fault, and a tunnel to the southeast
is in over 170 feet, following for part of that distance a wide vein of the same
white quartz that cuts across the black slate. The vein appears near the
face of this tunnel to be split up into stringers, or to have become very
small, but the ground is concealed by the timbering. From a 10-ton test
lot of this ore, Mr. Marsh is said to have got $7 to 8 per ton.’

Island Mountain Ledges

The openings that were made in these ledges in the late seventies and
eighties, mentioned below, are nowadays caved and full of debris, and very
little information of any value can be derived from a surface examination of
them. Veins of A and B types no doubt occur, but it is impossible to say
to which class the individual ledges belong. Bowman? gives some detailed
information on each of the veins, but there is nothing in his descriptions
important enough to warrant repetition.

“John’s Ledge. The best known of the ledges mentioned is that
owned by the Island Mountain Mining Company. This company holds
three Crown-granted mineral claims. On this property three tunnels have
been driven. The middle tunnel is in about 200 feet, with several crosscuts,
and follows a very irregular quartz vein, but with one good wall, in a direc-
tion about south 45 degrees west. This vein is really a succession of inter-
bedded lenses, having a width of about 3 feet and connected by a series of
stringers. :

“Another tunnel, 25 feet higher vertically and 100 feet to the west,
also follows the vein for about 150 feet, with a crosscut to the left. In this
working the vein appears to be split, and is cut off for a distance, but is
again in sight at the end of the tunnel. In the crosscut the vein appears to
carry nearly 20 per cent of sulphides, and the face of the tunnel about
5 per cent, and as the gold is largely contained in the sulphides, the values
will vary in the same manner. No work has been done here for eight or
ten years, but a number of tons of ore from these tunnels were treated in
the company’s mill at the foot of the mountain, and are reported to have
yielded between $2 and $4 per ton in gold.

“The Little Giant mineral claim is about 300 feet above and overlooking
Jack of Clubs lake, and on the same hill as the previously mentioned ledge.
In an open-cut there is a 3-foot quartz vein, showing no mineralization and
occurring in an altered mica schist, apparently interbedded, and with a
strike south 60 degrees west. This showing was followed in by a tunnel,
now caved near the mouth so that it could not be examined, but reported as
100 feet long and with the vein narrowing very much, but with sulphides
coming in in a very considerable percentage.

1Ann. Rept., Minister of Mines, B.C., 1897, p. 474.
Geol. Surv., Canada, Ann. Rept., vol. II, pt. C. pp. 34-37 (1889).