169

portal is being planned. The seam is said to be 7 feet 23 inches thick with
a 6-inch and a 44-inch band of clay-ironstone and to dip 33 degrees
southwest.

Downstream this seam outcrops in the high canyon wall and is inac-
cessible. It gradually descends toward the mouth of Heron Creek, near
which it reaches river level and, crossing the river, is apparently continuous
with a seam worked by Neil Gething many years ago called the ‘7-foot’
seam.

Boring Seam

The Boring seam is 12 feet above the Larry Creek sandstone member
(See Figure 10) in the lower part of the Gething formation. It outcrops
at river level in ledges on the south side of the canyon, at Boring Point,
and consists of:

Feet Inches
Coals canneloid Uy. keh cre stoi ta eee ee ne hs coe 1 6
Coal ishinyzandidull eee rere certain teri e 0 2
Sbaley blacks os meme cic cca esare Me ocine wisn ss 0 9
Coa lSShiny: austen teessie axe se sera otek he ss Me nie eas 1 0

Analyses of the upper 1-5 feet and the bottom 1 foot are as follows:

Ash | Volatile | Fixed Caking | Colour S Btu.

rz. Moisture matter | carbon | property ash

Upper 1-5 feet
As received. 222) 11-5 19-5 66-8 |Agglom- {Pinky 0-7 | 13,060

erate white
DrysA eek 11-7 20-0 66-3 i ff 0:7 | 13,360
Basal 1 foot
As received. 4.3 5-2 21-6 68-5 |Good Fae 0-8 | 14,070
pin
Dry fier. aie 5-5 22-5 72-0 0-9 | 14,690

The first analysis indicates a low volatile bituminous coal and the
second is of medium volatile bituminous rank.

The outcrop of this seam can be seen in the high wall of the canyon to
the east of Boring Point. It rises to the depression cut by Heron Creek in
the cliff. It then extends into the lower part of the valley of Heron Creek,
but it is concealed there. It may also continue to rise up the canyon wall
northwest of Heron Creek and come to the surface south of Larry Creek.

Twin Seams

The Twin seams lie immediately above the Heron Creek sandstone
member (See Figure 10) in ledges at river level, about 1,100 feet downstream
from, and west of, Boring Point. The lower of the Twin seams is 2-3 feet
thick and the upper 2 feet. Between them is 7 feet of siltstone, dark shale,
and some very thin coaly layers. Analyses are as follows:

60920—124