COAL. 99 
rangle a shaft less than 100 feet deep would reach the coal. The rail- 
road might even be continued 3 miles or so beyond this to the source 
of the Mingo Creek drainage, and in the area between Gilkeson and 
Kammerer shafts could be sunk and operations pushed east and 
northeast up the dip to meet the workings on the eastern flank of the 
axis. A small area south of Mingo Creek could also be opened up 
from the shafts along its course, but as the Amity anticline pitches 
to the southwest, most of the region lying south of the Williamsport 
pike can probably be more economically worked from shafts located 
on North Branch of Pigeon Creek. 
At the point where the axis of the Nineveh syncline crosses Little 
Chartiers Creek, near Linden, the Pittsburg coal lies between 200 and 
250 feet below the surface, and this is probably the most favorable 
location in this valley for a shaft. From it a large area both east and 
west of the syncline can be mined and easily drained, and the coal can 
be conveniently hauled by connecting with the Baltimore and Ohio 
Railroad at Gambles or with the Pennsylvania lines near Morganza, 
3^ miles to the north. 
Probably the next favorable point in the valley of Little Chartiers 
Creek for sinking a shaft lies on the axis of the syncline one-half mile 
west of Clokeyville station. The depth of shaft necessary to reach 
the coal will be about 400 feet, but as the mine would be situated on 
the main line of the Baltimore and Ohio Railroad no branches would 
be necessary. From this point the coal can be mined up the dip in 
every direction except toward the south. The area lying between 
Mount Pleasant and Clokeyville can probably be best developed by 
sinking a shaft at the head of the small valley about 1 mile west of 
Mount Pleasant. The depth to the coal here is supposed to be 
between 600 and 650 feet. 
In order to develop the coal in the southern half of the quadrangle 
a railroad must be built into the valley of Tenmile Creek. The line 
can be connected with the Monongahela branch of the Pennsylvania 
Railroad at West Brownsville, about 18 miles below Zollarsville, with 
the Ellsworth branch by tunneling from Daniels Run to South Branch 
of Pigeon Creek, or with the Baltimore and Ohio Railroad by a branch 
line ascending Little Chartiers Creek south of Eightyfour and descend- 
ing Brush Run to Lone Pine, whence branches could be run both up 
land down stream. 
In the valley of Tenmile Creek and its tributaries many favorable 
points for shafts can be found. The axis of the Waynesburg syncline 
crosses Daniels Run 1| miles from its mouth and Tenmile Creek 
three-fourths of a mile below Bissell, and shafts at these points ought 
to reach the coal at about 380 and 470 feet, respectively. From such 
shafts entries could be driven to the north, east, and west ; but as the 
Waynesburg syncline is here pitching toward the south, the coal south 
