146

hundred feet apart vertically are all favourable features which justify some
further work. The geographic position of the property is interesting. No
granitic intrusive was seen in the vicinity.”

BOG IRON DEPOSITS
CAMERON RIVER BOG IRON

Spring deposits of bog iron ore are situated at intervals along the
valley of Cameron River (north fork of Halfway River) from its head to its
junction with Halfway River. Several of these deposits some 10 miles up
Cameron River were visited by J. D. Galloway in 1923, and the following
information is taken from his report (1924).

The deposits consist of isolated, small, circular masses of bog iron,
which is relatively pure near the centre of each mass, but grades into iron-
stained gravels and clays on the outside. Each deposit has had its origin
from a central spring, the water of which contained iron in solution, which
was precipitated as iron oxide after reaching the surface. In many in-
stances the springs forming the deposits have ceased to flow, and the bog
iron has lost its water content and hardened. The pure iron oxide deposited
near the mouths of the springs is good-grade ore, but where it is mixed
with surface gravels and clay it is too low in iron content to be of any
possible value as iron ore. The iron deposits are nowhere continuous for
any appreciable distance, and for the most part are too mixed with clay
and gravel to be of value.

BEATTON RIVER BOG IRON

The occurrence of bog iron along Beatton River has been recorded by
C. O. Hage (1944) as follows:

“Along Beatton River west of the Alaska Highway are several deposits
of bog iron. One of these is 2 miles upstream from the Beatton River
bridge and 4 mile south of the river. Another is 5 miles above the bridge on
the north side of the river and on the pack trail to Lily Lake. Both deposits
cover areas of several hundred square feet. The depth of the deposits was
not determined except to note that it is more than 10 inches. No glacial
material was found on top of the iron deposits and they can, therefore, be
considered as of post-Glacial age. They are believed to have been pre-
cipitated from spring waters issuing from shales of the Fort St. John
group.”

The following are analyses of samples collected by C. O. Hage and
analysed in the laboratory of the Mineralogical Section, Geological Survey
of Canada, Ottawa:

2 miles west of Beatton | 5 miles west of Beatton

River bridge River bridge
Per cent Per cent
ReOy ee cnn eee 79-70 78-10

Mn ORR Seo ee ey. ee faa Trace None

ETO Susthictans steers ste eat See 15-11 19-38

nso) ieeavaey as yer meget tht aon 3-50 Not weighed
*Potale pyar es seme eons 98-31 97-48

SU SS Ne