BERING RIVER COAL. 69 
Section in third (eastern) opening on hillside trail on east side of Carbon Mountain. 
Shale roof. Kt. in 
Coal 10 6 
Shale floor. 
Strike, N. 60° E.; dip, 28° NW. 
Section on east side of Carbon Mountain, second opening from west end of hillside trail. 
Shale roof. Feci. 
Coal o 15 + 
Shale floor. 
Strike, N. 77° E.; dip, 22° NW. 
It was not possible to obtain a complete measurement of this coal, which is reported to 
be 23 to 25 feet thick. 
Section on east side of Carbon Mountain, first opening from west end of hillside trail. 
Ft. in. 
Coal b lo 6 
These three sections are all probably on the same seam, which the owners claim to have 
followed along the mountain side for 2 miles, finding in this distance thicknesses ranging 
from 9 to 25 feet. 
About 200 feet below this is another seam which is said to vary in thickness from 4 to 11 
feet. The following section was measured by the writer: 
Section of seam 200 feet below hillside trail on east side of Carbon Mountain. 
Shale roof. Ft. in. 
Coal c 4 8 
Shale floor. 
Strike N. 80° W., dip 30° NE. 
Several other seams are exposed lower down the face of the mountain. 
An important and apparently very persistent seam is exposed along the west side and 
near the top of Carbon Mountain. It is possibly the same as the upper seam, referred to 
above, on the east side of the mountain. The following sections were measured: 
Section at north end of hillside trail on west side of Carbon Mountain. 
Shale roof. Feet. 
. Coald (bright, clean, and often iridescent) 15 + 
Shale floor. 
Strike N. 84° W., dip 25° NE. 
Section at south end of hillside trail on west side of Carbon Mountain. 
Shale roof. Feet. 
Coal e 10 
Shale floor. 
Strike N. 52° E., dip 6° SE. 
The following sections, taken a little farther south on the west side of the same ridge, show 
a coal which has the physical characteristics of the anthracite at the other openings in the 
vicinity, but whose analyses indicate a semianthracite. From the structural relations it 
seems probable that one of the seams corresponds to the lower coal described from the east- 
ern side of the mountain. 
Section in opening near crest (west side) of Carbon Mountain between trails. 
Shale roof. Ft. in. 
Coal / 5 ;; 
Shale floor. 
a Included in sample No. 3, p. 74. rf Included in sample No. 6, p. 74. 
b Included in sample No. 4, p. 74. « Included in sample No. 7, p. 74. 
c Included in sample No. 5, p. 74. /Included in sample No. 8, p. 74. 
