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here been markedly thickened at the crest of a fold (Analysis 12, Table 1
[IV]). A second seam 2 feet 6 inches thick exposed on McAllister Creek
2-2 miles above its junction with Carbon Creek lies perhaps 2,500 feet above
the base of the coal-measures (Analysis 13, Table 1 [IV]). A third seam,
2 feet 9 inches to 3 feet thick, exposed on McAllister Creek 1 mile above its
junction with Carbon Creek, is perhaps 3,000 feet above the base of the
coal-measures (Analysis 14, Table 1 [IV]). The stratigraphic position of
these three seams is difficult to determine because of the complexity of
folding in this part of the basin.

“The majority of the seams in the Carbon Creek field are exposed in
the central part of the basin between the mouths of Ten Creek and McAl-
lister Creek, at horizons probably at least 3,500 feet and possibly 4,500 feet
above the base of the coal-measures. Nine seams locally exceeding 4 feet
in thickness are present in about 650 feet of strata within this area. Most
of the seams are exposed in the canyons of lower Eleven Creek and its
southern fork, but in spite of the almost continuous exposures of the coal-
measures found along these creeks, the existence of several faults renders
the correlation of several seams and the determination of the intervals
between them impossible on existing evidence. The succession of these
seams, spacing where known, thicknesses, and analyses are given in Table
2 [V]. The position where the samples, listed in Table 2 [V], were taken
are indicated in the plan and structure sections, Eleven Creek Area, Carbon
Creek Coal-basin [See Figure 16].

“One seam 34 inches thick, and apparently corresponding with one of
the lower seams on the Eleven Creek section, is exposed on Ten Creek
about 0:5 mile from its mouth (Analysis 15, Table 1 [IV]). A pair of seams,
the lower 5 feet 7 inches thick (Analysis 16, Table 1 [IV]) and the second
about 16 feet higher in the succession, 2 feet 6 inches to 6 feet thick (the
latter figure reported by Stines) (no sample), outcrop on Carbon Creek 0-7
mile above the mouth of Eleven Creek. Their relationship to the seams
on Eleven Creek is concealed by drift. They may correspond to the two
lowest seams on Eleven Creek, since the lower seams in each case are of
comparable thickness and the spacing between the seams is similar. The
upper seam on Carbon Creek is, however, much thinner than the upper
of the two seams on Eleven Creek. Two other seams, the lower 5 to 6 feet
thick, the upper 3 feet 5 inches thick, separated by 18 feet of shale and
sandstone, are exposed on Carbon Creek 3 miles above Eleven Creek. The
lower seam outcrops in the creek, and only the uppermost 2 feet 6 inches
could be sampled (Analysis 17, Table 1 [IV]). The upper seam is exposed
on the banks of the creek, and the full width could be sampled (Analysis
18, Table 1 [IV]).

“Other seams less than 3 feet thick are known, but have not been
sampled. A seam (No. 13, Table 2 [V]) 4 feet 9 inches thick, including a
1-inch and a 2-inch shale parting, first disclosed by stripping on lower
Eleven Creek in 1945, has not been sampled by the writer.

“At several localities in the Carbon Creek basin, coal seams have been
partly burned. The shales and sandstones in their vicinity have commonly
been baked to a brick-red colour, and in one place, on the south fork of
Eleven Creek 0-2 mile from its junction with the main stream, the shales
overlying one burned seam have been fused into a scoriaceous clinker,