NORTH-WESTERN DISTRICT (No. 1). 25

up their showings. Examining engineers are displaying a keener inclination to pick up promis-
ing prospects in this area and have been quite active in the section during the year. Energetic
development-work has been conducted on the old Drum Lummon by the Los Angeles-Vancouyver
Mines, Limited, and on the Surf Point, Porcher island, by the Timmins interests.
This property has usually been referred to as the Moult property, but is known
Hidden Lake. locally as the Hidden Lake. The claims of one group of owners are divided
by a centrally staked claim known as the Hidden Lake, owned by W. H. Moult,
of Swanson Bay. Adjoining the Hidden Lake on the north are the Black Bear and Grey Wolf,
and adjoining it on the south are the Big Deer and Black Wolf, owned by E. S. Tait and H. S.
Ward, of Prince Rupert.

The property is situated on James island, on Griffin pass, between Mathieson channel and
Sheep pass. Griffin pass is a narrow and shallow channel between James and Roderick islands
and is composed of a series of four broads or salt lakes connected by three restricted and reefy
narrows, through which the tide rushes with great force. The property can be reached from
both ends of the pass, but the approach from the north end is unsafe for gas-boats, and it is
advisable to anchor before the first rapids and complete the journey in a rowboat at slack or
with a favourable tide.

The ore-showings are about 1,000 feet east of the beach in an inclusion of altered inter-
ealated limestone and schist in contact with quartz diorite. The zone in which the mineraliza-
tion occurs occupies a well-defined hogsback that rises up from the beach to 100 feet elevation,
beyond which the diorite mountain-sides slope abruptly to 1,000 feet altitude. The mineraliza-
tion consists of chalcopyrite, pyrite, some bornite, and an occasional speck of molybdenite, oceur-
ring in a gangue of garnetite, banded limestone, and epidote. The ore is best developed where
the most complete alteration to garnetite has occurred and in association with stringers and
patches of quartz. The mineralization of chaleopyrite and pyrite occurs in yeinlets and also
disseminated throughout the gangue. The ore-zone strikes N. 60° W. and dips 60° south. Quartz
diorite occupies the foot-wall. On the hanging-wall the zone grades into banded limestone
and garnetiferous schist carrying sparser mineralization. The occurrence is a typical contact-
metamorphic deposit. The decided regularity of the contact is, however, a marked feature of
the occurrence.

On the Hidden Lake the zone has been traced by eight open-cuts for about 1,100 feet. In the
two most northerly cuts in the banks of a creek a width of 9 feet of even mineralization,
is exposed. A chip sample representative of the ore-exposure 9 feet wide in the face of the
cut in the south bank of the creek assayed: Gold, 0.04 oz. to the ton; silver, 0.4 oz. to the ton;
copper, 1.6 per cent. The long open-cut at the southerly end of the Hidden Lake claim exposes
mineralization over a width of about 6.5 feet of a probably better grade than in the creek cuts.
In this cut more bornite is evident. In the five intervening shallow cuts mineralization is sparse,
with the exception of one near the southerly end, which shows a good development of ore across
3 feet. Heavy overburden covers the continuity of the zone beyond the two described extremes.
An exposure of ore on the Big Deer is reported to occur on the beach 500 feet southerly of the
Hidden Lake line. -It can be reasonably assumed that the zone continues, both northerly and
southerly, beyond the Hidden Lake exposures.

During 1928 some work was done on the property by the Granby Company. This exploration
has, however, not been conclusive. The property offers every facility for economical operation
and is worthy of further exploration. Diamond-drilling could be very conveniently carried out
along the base of the hogsback. Besides information regarding mineralization, such diamond-
drilling would determine the depth of the delimiting underlying batholithie rocks.

This company was incorporated in August, 1929, for the purpose of operating

Western Canada graphite-deposits on Mussel and Kynoch inlets. The locality was visited
Graphite Co., Ltd. during November, but the claim-holders were unfortunately not then on the
ground. Two days were spent in searching the Bear River-Poison Cove area,

the valleys of three streams that flow into the head of Lou Kent bay, Mussel inlet, and the area
around the north shore and head of Kynoch inlet for the workings. A water-power staking by
L. K. Lentz, dated August 16th, was located at the head of Lou Kent bay. Unfortunately, how-
ever, no workings could be located and no blazes or trails that might lead to them were found.
The deposits are mentioned in the Summary Report, 1921, Part A, Geological Survey of Canada,
and are described as disseminated graphite in schist.