—

163

the outcrop rises in the high cliff on the south side of the canyon. In this
cliff the exposure is for the most part inaccessible, but there is an exposure
easily reached at the top of the cliff at the mouth of Mogul creek. From
there the outcrop runs southeasterly back from the river and on Moosebar
creek a seam below the third or high falls is tentatively correlated with
the Castle Point.

“At Milligan point the section of the seam is as follows, including 2
feet 1 inch of coal and two partings aggregating 2 feet:

Feet Inches

HOT NC Sena, Means Bie Nea NOE ean ee ae |e ed 0 8
Olayaironstone sfx oe eon Fe ee iL 0
Coal RRO em ep a ice a) Getter chee een. oka wee 1 0
PSII tt cree Rene et cin Farmer eee cemeeRt ok a eta ate 1 0
Conll Reene Bs aa teeny etion ore ies ce decimate. 0 5

4 1

“At the mouth of Aylard creek, 1-3 miles distant, the seam contains
3 feet 5 inches of coal and a coneretionary band 4 inches thick, or 3 feet
9 inches in all; the foot-wall is black carbonaceous shale. To the south-
east 0-41 mile, at the mouth of Mogul creek, there is 3 feet 2 inches of
coal. Two miles southeast, the seam on Moosebar creek correlated with
the Castle Point has 2 feet 3 inches of coal and partings aggregating 2

feet 1 inch:
Feet Inches

4 4

“This seam has been described on account of its fair thickness in the
Aylard-Mogul Creeks locality and on account of its proximity to the
Milligan seam... The rank and grade of the Castle Point coal seam are
not known, no samples having been taken.

Milligan Seam

“The Milligan seam is about 605 feet below the Moosebar contact
and 28 feet below the Castle Point seam. It is exposed at Milligan point
on the north shore near the base of the cliff. From there the outcrop runs
inland and comes to the river again on the north shore a little below Harle
narrows, where the seam is exposed. The outcrop crosses the river, and
the seam is exposed on the south bank near river level just below the mouth
of Aylard creek. Downstream, the outcrop rises gently in the cliff, and
near the mouth of Mogul creek is exposed about halfway up the cliff. From
there the outcrop runs inland back from the river, and a seam on Moose-
bar creek below the third or high falls is correlated with the Milligan.

“At Milligan point this seam is 2 feet 6 inches thick and consists of
coal and large concretions. One mile southeast, just below Earle narrows,