years, but during operations the grade of ore treated appears
to have been too low to return consistent profit.

There are small occurrences of scheelite in several
properties in the Portland Canal area, but only on one—
the Molly B—has it been found even in moderate amounts.
The Telkwa-Hazelton tungsten properties include the Red
Rose and the Black Prince in the Rocher-Déboulé Range
south of Hazelton and the Whitewater property at the head
of Telkwa River. No production came from the Black
Prince and very little work has been done on the property
since 1916. At the Whitewater property, scheelite
occurs in very small quantities at widely scattered points
along the outcrop of a lenticular quartz vein. Only at
One point is it found in mineable amounts. The property
has not been developed.

The Red Rose tungsten mine of Consolidated Smelters
near Hazelton was placed in production in 1941 as a war
measure. The capacity of the mill was enlarged in 1942,
but, following an increase in the supply of tungsten from
foreign sources, operations were suspended late in 1943.

There is not, at present, any production of molybdenite
in British Columbia, though there are numerous small
occurrences. In the northern section, the Tidewater
Molybdenum property, situated at the head of Alice Arm
Inlet, was operated in 1916 by the Molybdenum Mining
and Reduction Company, who built a 100-ton flotation
mill. Very little ore was treated and production was
negligible. At the Mammoth Property on Observatory
Inlet, fine-grained molybdenite was found in quartz veins.

Other small occurrences are known in the Terrace and
Hazelton districts.

During the past thirty years, small shipments have
been made from various other mines in northern British
Columbia. The Engineer mine at Atlin produced gold
intermittently from 1913 to 1934. Between 1938 and
1942, Big Missouri Mines at Stewart in the Portland Canal
area milled 822,011 tons of ore averaging 0-078 ounce of
gold per ton. During the period 1919-21, Dolly Varden
Properties, Ltd., near Alice Arm, produced 1,304,409
ounces of silver. The Property was reopened in 1936,
and 32,000 ounces of silver were produced during the
following year. In the interior, along the Prince Rupert
branch of the Canadian National Railways, ore has been
shipped from many small mines, among which may be
mentioned the Rocher-Déboulé copper property, the
Silver Standard lead-zinc-silver mine, and the Duthie
silver-lead-zine mine.

Although the Cariboo district is situated on the southern
border of the North Pacific Region, it has not been included
in this report. Its lines of communication are linked to
Vancouver and the economy of the district belongs more
properly to southern British Columbia than to the North

Pacific Region.

Yukon Territory—Lode mining in Yukon first became of
importance in 1912 with the production of copper from the

———— ee

Whitehorse district. Since that time, about $26,000,000
in silver, lead, copper, and gold has been produced from
lode sources in Yukon. Prior to 1920, lode mining was
confined to copper mining in the Whitehorse copper belt.
From 1920 to 1944, lode production came almost entirely
from the silver-lead deposits in the Mayo district.
1941, output from the Territory has been very small.

Since

The Mayo silver-lead veins were discovered by placer
miners in 1906. Mining began in 1913, and, with the
exception of 1919 and 1920, some ore or concentrate has
since been shipped from the area each year. The deposits
are exceedingly rich in silver, and large tonnages of ore,
containing 200 to 300 ounces per ton, have been mined.

The Silver King property on Galena Hill was the first
mine to enter production. From 1920 to 1923, most of
the silver and lead produced came from deposits that were
discovered on Keno Hill to the northeast. Treadwell-
Yukon Corporation entered the field in the early 1920's,
and in 1924 built a 150-ton concentration mill at Wernecke
on the slope of Keno Hill. In 1935, this mill was moved to
the Elsa property on Galena Hill, and ore from the Silver-
King, Elsa, and Calumet mines was treated until operations
were discontinued in November, 1941. Total value
of production from Treadwell Yukon’s properties was
$21,194,863 from silver, lead, and a small amount of gold.
A few operators continue to mine and ship small tonnages
of high-grade ore from the district.

The Whitehorse copper belt was discovered in 1897,
and its location close to the railway made possible its early
development. From 1900 to 1912, production was inter-
mittent. Under the impetus of the high price of copper,
production was continuous during the next eight years, and
in 1916 reached a peak of 2,807,096 pounds of
With the drop in the Price of copper, operations ceased
at the end of 1920, although much material formerly
regarded as ore is said to remain. The deposits are of the
contact metamorphic type, exceptionally rich but spotty,
and the principal minerals are bornite and chalcopyrite.

Little work has since been done in the Whitehorse
area, although a few Promising deposits have been dis-
covered during recent years. In the Wheaton River
section, prospecting work on the Combination claims in
1937 exposed two veins, on one of which samples from pits
and trenches yielded commercial value in gold, silver, lead,
and zinc. No work was done on the other vein. During
the same year, the Inca Mining Company of Carcross
carried out some exploration work on the Broken Hill
claims near Windy Arm of Tagish Lake. Seven trenches
along 6,000 feet of a vein mineralized with sulphides yielded
values from $2 to $35 per ton in gold and silver. In 1938,
a vein on the Mascot claims on the west slope of Mount
Reid was exposed for nearly 2,000 feet by trenches and a
200-foot adit. Samples from thirteen trenches along the vein
averaged 0-344 ounce of gold and 8-36 ounces of silver
pet ton over an average width of 2-1 feet.

copper.

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