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The dyke follows a course of south 80 degrees west from the claim
post mentioned above, but is mostly concealed by talus from a steep hill
which rises on its north side. A pit sunk on the hanging-wall 500 feet west
of the post exposes a 12-inch quartz vein. Five hundred feet farther west,
quartz veins are exposed on both sides of the dyke. The vein along the
north side of the dyke has been followed by trenching and test pitting
for about 300 feet and averages 12 inches in width. A channel sample
taken from the northeast pit across 17 inches of quartz assayed only a
trace in gold and silver. One hundred feet west of this point the quartz
carries some sulphides and a small piece of gold was seen in a weathered
fragment. The vein along the south side of the dyke is followed by trenches
for over 100 feet at this place and averages about 2 feet in width.

The quartz albite dyke has not been followed west of the claim posts
near the crossing of the Lookout trail. Just east of the trail the dyke
has been altered and contains magnetite cubes pseudomorphous after
pyrite.

Annie Laurie Claim

References: Annual Report of the Minister of Mines, B.C.: 1930, p. 78. Geol. Surv.,
Canada, Sum. Rept. 1926, pt. A, p. 41.

The claim lies immediately south of the St. Paul claim on Thornhill
mountain, and is owned by J. A. Michaud of Terrace. It is about 150 feet
above Fivemile Creek lake, at an elevation of 4,200 feet. A rock trench,
25 feet long, 4 feet wide, and 5 feet deep, has been cut along a quartz vein
enclosed in grey granodiorite. Scheelite is sparingly scattered through the
white quartz and is in the form of irregularly shaped nodules 1 to 2 inches
in diameter. In specimens on the dump, sphalerite, galena, pyrite, and free
gold were seen, the gold occurring in weathered crevices in the quartz.
The quartz lens, as exposed in the trench, has a maximum width of 12
inches and tapers to a mere joint plane filling, 1 inch in thickness, at both
ends of the trench. At the southerly face of the cut a vertical joint plane
is filled with 2 inches of pure barite.

A Claim
(See Figure 6)
References: Annual Reports of the Minister of Mines, B.C.: 1918, p. 51; 1928, p. 75.

The A claim is situated on the southwest slope of Thornhill mountain
about 6 miles southeast of Terrace. It is reached by way of a pack-horse
trail that leads from the Lakelse Lake road to the Forest Lookout cabin
on top of the mountain. There is a cabin on the claim at an elevation of
3,000 feet, reached by a short branch to the south from the main trail. The
principal showing is on a small stream 200 feet above the cabin.

Grey, coarse-grained granodiorite intruded by an irregular dyke of
quartz-orthoclase porphyry is exposed in the stream bed. These rocks are
cut by roughly parallel quartz diorite dykes, the largest of which is 15 feet
wide and strikes north 35 degrees west. The quartz-orthoclase porphyry
has been offset by a vertical fault running in a northeasterly direction along
the stream course, but neither the quartz diorite dykes nor the veins that
cut them are faulted.

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