231

bedding or laminated structure is visible both within this metamorphic
type, and between magnetite and garnet. Magnetite bands have an
average thickness of 1} feet, and suggest a derivation by replacement
of a bedded rock, such as a tuff. A tunnel 3 feet long is driven into a body
of mixed magnetite and garnet, and a small amount of old open-cutting
and stripping can still be observed. The largest exposure is a circular
one surrounded by drift, and has an area of about 1,000 square feet in
which very impure rocky magnetite occurs.
Neither of these deposits is of any commercial iia

Bibliography
See page 158 for further details

6. Carmichael, H., pp. 208-209.
20. Lindeman, E., and Bolton, L. L., pp. 12-13.
21. Brewer, W.M., p. 24.
22. Whittier, W. H., p. 62.

(54) Nootka Sound
(See Figure 42)

One of the largest groups of deposits of magnetite known near the
west coast of Vancouver island occurs one mile from tidewater, near Head
bay, at the north end of Tlupana arm. It covers parts of four mineral
claims, divided between two ownerships, but the two sets of showings are
so linked together geologically and areally, that they are both plotted on
the same map. The Glengarry and Stormont constitute one group, and
the Rob Roy and Prince Charlie the other.

(54 a) Glengarry-Stormont Group
LOCATION

These deposits occur on the ridge on the southwest side of the deep
valley which is the northwesterly continuation of the Tlupana arm depres-
sion. The old trail to the showings which followed the valley is impassable
owing to windfalls, so that present access is by a foot trail leaving Head
bay and extending to the showings on the adjacent Rob Roy-Prince
Charlie claims. From the No. 2 posts of the Glengarry and Stormont

claims, which are on this trail, a blazed line leads northeasterly for about
700 feet to the bluff of magnetite.
The deposits are located on the nearly flat top and northeasterly
slope of a prominent ridge trending northwesterly. ‘The country is well
: timbered with hemlock, balsam, and cedar, but not very thickly covered
with underbrush. ‘The bluffs of magnetite near the northeast boundary
are bare of timber in places, but are overgrown with light underbrush and
moss. Glacial drift mantles all except the steep northeasterly slopes.
The showings are at elevations varying from 250 to 430 feet (barome-
tric) abové sea-level, and are well located for purposes of exploration and
mining. The valley along the northeast edge of the deposits is a broad,
open one and no difficulty would be experienced in making use of it for ore
transport. The greatest depth beneath the exposures that could be ob-
tained by means of tunnel development would be about 250 feet.