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HISTORY AND OWNERSHIP

These claims were staked in 1902 by Clarence Dawley, of Clayoquot,
William Poole, of Nootka, and Lachlan Grant. Some time afterwards,
the owners interested Mr. William Sutton, geologist and mining engineer
for the Dunsmuir interests, who made an examination of the claims and
purchased on behalf of these interests the two-thirds share owned by Poole
and Grant. When the Canadian Collieries (Dunsmuir) Limited took over
the Dunsmuir coal mining properties about 1910, the iron ore deposits at
Head bay were included, so that the claims are still in good standing in the
names of the Canadian Collieries (Dunsmuir) Limited and Clarence
Dawley. Three claims, Stormont, Glengarry, and Texas were Crown-
granted in 1909.

GEOLOGY

The geology of these deposits is simple (See Figure 42). The area lies
in the contact zone between an intrusive diorite and a thickly bedded, blue-
grey limestone. Large exposures of the diorite are not observed on the
claims, but occur along the trail to the beach, and along the shores of Head
bay. As seen near the deposits the diorite is fine-grained and porphyritic,
and in most cases is in dyke or sill form in the limestone. The longest
exposure is at the base of the bluff of magnetite, and this may be part of a
large plutonic body.

Limestone is the principal country rock; in some places it is markedly
stratified, but in others this bedding structure is not easily apparent.
There is a general northwesterly strike with a shallow dip (not over 45
degrees) to the southwest. Strike and dip faults are doubtless present,
but they were not observed or mapped.

The idealized northeast-southwest cross-section, accompanying Figure
42, shows a probable interpretation of the structure, which in some respects
is similar to that described for the Sarita and Copper Island deposits,
Barkley sound. Underlying the dipping limestone, and with an undulating
upper contact, is believed to be the main body of diorite, from which dyke
and sill apophyses extend upwards and laterally into the limestone. The
limestone ridge is, therefore, an uneroded portion of the roof of the diorite
intrusion.

OCCURRENCE OF THE MAGNETITE

Magnetite occurs in a number of apparently isloated ledges in associa-
tion with altered limestone, in many cases conforming in strike and dip
with the limestone. The two cross-sections, through open-cuts B and C,
Figure 42, show a well-marked dip from 20 degrees to 45 degrees into the
hill, and in many of the exposures the bedding structure is preserved in
detail in magnetite and garnet bands, or in adjacent bands of magnetite
of different grain.

Outcrops of magnetite extend throughout a longitudinal distance of
1,860 feet in a northwest-southeast direction, and for 1,320 feet across the
strike (including the showings on the Rob Roy and Prince Charlie claims).
In many cases these outcrops are associated with garnet, and garnetized
limestone; and when this mixture contains less than 70 per cent by volume
of magnetite, the showing is classified and mapped as a magnetite-garnet
mixture. Showings having a higher magnetite-garnet ratio than this are
mapped as magnetite. Many of the outcrops show no geological relations