over clayey gravel lying above thinly-bedded clay which in
turn rests on the bed-rock of an interglacial channel. Bar-
rington's camp is to the east on a gravel bench 20 to 25 feet
above the creek (see Fig. 4).

A rock bench, thinly covered with clay, sand and gravel
lies farther east, about 40 to 45 feet above the creek. The
first gold recovered by Peacock was from a ground-sluice cut
in the bottom of the creek beside the low gravel bench. The
gold in the clayey gravel, was recovered largely because the
ground-sluice cut was bottomed by firmly-cemented gravel or
thinly-bedded clay. Bed-rock was reached only at the east
side of the booming-dam; there was none in the bottom of the
cut. Apparently bed-rock slopes steeply westward beneath the
creek.

3800

Wheaton (Boulder) Creek Rock bench N

3775

“. Late Tertiary
. channel

3750

Draig-line cult
Creek by-paps

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Interglacial channel !

3725

LEGEND
Clayey gravel 4
Scale ees Feet Thinly bedded clay

Sedimentary bed-rock KS

Fig. 5. Cross-section along section-line A-A on Fig. 4, showing bed-rock channel
beneath Wheaton Creek on the Peacock lease, and probable late Tertiary channel
lying to the east of the rock bench.

Later, in the autumn of 1938, rich pay-gravel was found
at the south end of the lowest gravel bench (see Fig. 4). It
is reported that in about 6 weeks gold valued at about
$12,000.00 was recovered by hand-shovelling from about 11,000
square feet of ground. The surface sloped upward from the edge
of the creek to a narrow bench intermediate in level between
the low gravel bench on which Barrington's camp is built and
the rock bench to the east. The gold was in clayey gravel
within 2 to 3 feet of the sloping surface whereas similar
gravel beneath is barren. When the ground was worked only the
top gravel was shovelled into the sluice-boxes and bed-rock
was encountered only at the extreme southern end of the work-
ings. The pay-gravel was followed and worked up to the edge

of the intermediate bench.

All the work done by Peacock on lease No. 345, prior to

Se