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“Coal from the Discovery seam is of low volatile, bituminous rank.
The ash content is low and coking properties are good. The section
underlying the Discovery seam was sampled to determine whether it
could be included in the commercial coal, but the analyses indicated a

low calorific value and high ash content.

“The Point seam is inferior in rank, grade, and thickness to the Dis-
covery seam. ‘The samples are from two benches separated by 15 inches
of carbonaceous shale. The coal is weathered and it is probable that the
analyses given above are not indicative of the true grade and rank. The
Point seam may, however, furnish additional tonnage if a mining plant is
installed to work the Discovery seam.

“The map shows the detail of the southeasterly part of the area near
Hasler Creek. The contact between Moosebar and Gething formations
was used as an horizon marker in prospecting and trenching for coal ex-
posures.

“Two localities were found in which comparatively shallow trenches
revealed coal: one is about 3,250 feet southeast of the adit and 700 feet
above creek level; the other is 7,500 feet southeast and about 900 feet
above Hasler Creek. At the first locality, seven pits and test holes re-
vealed coal. The coal in Pit No. 1 is about 18 feet thick and apparently
occurs at the crest of an anticline. Overlying beds strike south 45 degrees
east and dip 32 degrees southwest; about 30 feet below the pit, and appar-
ently underlying the coal, sandstones and shale strike south 60 degrees
east and dip 20 degrees northeast. Overlying beds near the ridge top,
south of Pit No. 1, dip about 32 degrees southwest. A section of sand-
stone and shale in Pit No. 7 strikes south 45 degrees east and dips 61 degrees
northeast. The overburden was too thick to permit determination of the
thickness of the coal seams in the other pits. The thickness of the coal
in Pit No. 1, its stratigraphic position, and the structural data, indicate
that the coal probably represents the Discovery seam. At the second
locality, a 15-foot seam of sheared coal occurs about 500 feet south of the
Moosebar-Gething contact. The strata between the contact and the coal
outcrop dip steeply and exhibit isoclinal folding with minor faulting.
Additional prospecting and trenching along the creek section are necessary
before it is possible to determine whether this coal section is the continu-
ation of the Discovery seam.

“Insufficient development work has as yet been done to permit definite
correlation of coal seams and the calculation of tonnages throughout the
area. Local faults and changes in physical character of the coal in the
folded zone might reduce estimates of mineable coal considerably. An
approximation of the tonnage of coal in the Discovery seam on the east
limb of the anticlinal structure has been made, assuming continuity be-
tween the adit and Pit No. 1. This region contains 400,000 tons of coal
above Hasler Creek level, using a 7-foot mineable section as the average
thickness. If the Discovery seam is continuous to the second locality
on Grizzly Creek, the available tonnage on the east limb would be 1,200,000
tons. Further prospecting should reveal the Discovery seam on the west
limb of the anticline, from which additional tonnage would be available.”