work must be founded on sound geological principles and must be much more detailed
and intensive than that already done. There are still opportunities for pan-prospect-
ing, but in areas of deep overburden, of which there are many, intensive trenching or
pit-digging must be laid out on a framework of geological knowledge.

Outside the two belts already mentioned, the possibilities appear less attractive,
mainly for the reason that few rich placers have been found elsewhere. Nevertheless,
the main anticlinal structure does extend farther in both directions, and on that basis
should be worth investigation; but it must be realized that there is no assurance of the
Rainbow member extending unchanged north-west of Island Mountain, nor the Hudson
member extending unchanged south-east of Cariboo River. Alternatively, the north-
erly-striking faults, such as have localized veins in,the Rainbow member, should be
worth prospecting along their strike to both north and south in the hope that elsewhere
they have induced fracturing that in turn has been mineralized with gold-bearing
quartz.

Other places that offer prospecting possibilities of varying degrees of attractive-
ness are near the placer occurrences at Wingdam and Cedar Creek, and around Spanish
Mountain.

The country between the productive area of the Cariboo and the mineral showings
(Blue Ice property) at the head of Hobson Creek is largely unknown geologically.
Nevertheless, it is fairly certain that the belt of Precambrian sediments extends be-
tween the two places. Despite the lack of known placer creeks in the area and without
any knowledge to what extent the country has already been prospected, it is believed
that this intervening country is worth prospecting on the chance that there will be a
repetition of geological and structural conditions favourable to the occurrence of gold
mineralization.

REFERENCES.

CARIBOO AREA.

BENEpDIcT, P. C. (1945): Structure at Island Mountain mine—C.J.M.M. Trans., Vol.
XLVIIL., 1945, pp. 755-770.

BowMaAN, A. (1889): Geology of the Mining District of Cariboo—Geol. Surv., Canada,
Ann. Rept., 1887-88, Vol. III., Pt. C.

COcKFIELD, W. E. (1934): Willow River map-area—Geol. Surv., Canada, Sum. Rept.,
1933, Pt. A. =

COCKFIELD, W. E., and WALKER, J. F. (1933): Geology and placer deposits of Quesnel
Forks area—Geol. Surv., Canada, Sum. Rept., 1932, Pt. A-1.

Davis, N. F. G. (1937): The Barkerville gold belt on Island Mountain—Geol. Surv.,
Canada, Paper 37-15.

HANSON, G. (1934): Geology and lode deposits of Willow River map-area—Geol. Surv.,
Canada, Sum. Rept., 1933, Pt. A.

(1935): Barkerville gold belt—Geol. Swrv., Canada, Mem. 181.

HOLLAND, S. S. (1946): Cariboo Gold Quartz mine—Minister of Mines, B.C., Ann.
Rept., 1945, pp. 73-79.

JOHNSTON, W. A. (1922): Placer mining in Barkerville area—Geol. Surv., Canada,
Sum. Rept., 1921, Pt. A.

(1923): Placer mining in Cedar Creek area—Geol. Surv., Canada, Sum. Rept.,
1922, Pt. A.

JOHNSTON, W. A., and UcLow, W. L. (1926): Placer and vein gold deposits of Barker-
ville—Geol. Surv., Canada, Mem. 149.

LANG, A. H. (1938): Keithley Creek map-area—Geol. Surv., Canada, Paper 38-16.

LAy, D. (1932): Lode gold deposits of B.C.—B.C. Dept. of Mines, Bull. 1, 1932.

(1934): Cariboo Mining Division—Minister of Mines, B.C., Ann. Rept., 1933,

pp. 115-145.

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