direction of ice movement. Directions of glacial striae on
high ridge tops on the west and east sides of Wheaton Creek
are north 37 degrees east and north 42 degrees east res-
pectively. Previously, Hanson and McNaughton! claimed that
the direction of the last ice movement was northward; where-
as, Johnston and Kerr2 state that ice moved southward across
Dease Lake area. The writer is inclined to think that the
direction of the last ice movement was northward. Whatever
may have been the direction of the ice-cap movement, the

last ice moved northward down Wheaton Creek valley. Ice,
furthermore, appears to have moved in a north-easterly direc-
tion from the head of Two-Mile Creek towards Wheaton Creek at
Barrington's camp. The rock surfaces were smoothed, striated,
and often polished by glacial ice. With the waning of the
ice-age a mantle of drift was deposited in the valley-bottom
and up the sides. Probably the disappearance of the last
glacial ice in both Turnagain valley and Wheaton Creek val-
ley took place by the melting of more or less stationary ice,
rather than by the retreating of an ice-front. The kettle-
lakes of the bottom of Turnagain valley and the benches along
the sides are an expression of this condition. At the same
time, high gravel benches along the sides of Wheaton Creek
valley were formed from deposits of sand and gravel of streams
flowing beside the stagnant ice mass. Successive benches were
formed at stages in the lowering of the ice-level, but the
valley was never completely filled with glacial debris. Con-
sequently, one would not expect to correlate benches from one
side of the valley to the other. The kettle-holes south-east-
ward from Barrington's camp were formed by the slumping of
glacial material subsequent to the melting of solitary blocks
Of ace pUurved. In drit ur

During the interglacial stage, when the country was more
or less free from glacial ice, an actively eroding creek
flowed in the bottom of Wheaton Creek valley. This creek is
believed to have cut a channel in bed-rock below the present
level of Wheaton Creek. In its course southward from Barring-
ton's camp the level of the interglacial stream may have
closely approximated that of the last pre-glacial level. It
is thought that from the Peacock lease (No. 345) northwards to
the Turnagain the interglacial channel diverges from the pres-
ent and pre-glacial courses of Wheaton Creek. The interglacial
channel is believed to lie buried to the west of Wheaton Creek

1 - Bureau of Economic Geology, Memoir 194, 1936, page 3.

2 - Geological Survey, Canada, Summary Report 1925, Part A,
page 47A.