100

M. J. Group (Locality 115)

References: Annual Report of the Minister of Mines, British Columbia, 1926, 1928,
and 1931.

The M.J. Group of six mineral claims is at an elevation of 3,000 feet
on the west side of Georgia river 34 miles from its mouth. The country
rock on the property is diorite sheared locally and containing much epidote.
The rock does not resemble the Coast Range batholith very closely and
may be an older intrusive. The mineral showings are quartz veins up to
3 feet wide and well mineralized with chalcopyrite, pyrrhotite, pyrite, and
some pentlandite. The veins are well exposed in open-cuts and locally
contain as much as 10 per cent copper.

Maple Bay Groups (Locality 203)
References: Annual Report of the Minister of Mines, British Columbia, 1905, 1906,

1911, 1918, 1921, 1923, 1924, and 1931; Geol. Surv., Canada, Sum. Rept. 1922,
pt. A.

Four groups, the Bluebell, Comstock, Hagle, and Princess Alexander
groups and the Star mineral claim are known as the Maple Bay groups.
They are at Maple bay on Portland canal. In 1913 the Granby Consoli-
dated Mining, Smelting, and Power Company took options on a number of
the groups and claims now included under Maple Bay groups and in 1916
shipped a few thousand tons of ore.

The country rock is amphibolite, like that at Anyox, with bands of
cherty sediments and of voleanic rocks and belongs to the same body as that
occurring at Anyox.

On the Bluebell claim a quartz vein up to 5 feet wide and containing
chalcopyrite and some pyrite has been developed by open-cuts and a short
drift adit. A crosscut adit 360 feet long failed to locate the vein at depth.

On the Anaconda claim a narrow quartz vein striking north-northeast
has been traced by open-cuts for several hundred feet. A few hundred feet
east, at an elevation of 2,500 feet, a larger vein up to 10 feet wide, striking
northeast and locally well mineralized with chalcopyrite, has been traced by
open-cuts for 700 feet. What appears to be a continuation of this vein
occurs about 1,000 feet farther northeast on the Princess May claim. On
the Princess May claim the deposit consists of quartz banded with country
rock across a width of 30 feet. It has been traced for 800 feet and outcrops
between the elevations of 2,700 and 3,300 feet. The quartz carries chalco-
pyrite but appears to be of lower grade than that on the Anaconda. Assays
across 10 feet of vein matter on the Anaconda claim have yielded as high as
2 per cent copper.

A quartz vein at an elevation of 4,000 feet on the Princess Alice claim
strikes east-northeast and is 1,500 feet northeast of the vein on the Princess
May claim. The vein has been traced for more than a thousand feet. It
may be the northeasterly continuation of the Anaconda-Princess May vein.
It contains chalcopyrite.

A large quartz vein on the Thistle and Rose claims adjoining the
Anaconda claim on the west is up to 25 feet wide. The vein strikes north
and has been traced for 500 feet. Locally the quartz is well mineralized