COAL. 101 
mouth of the Creek and probably about 630 feet below the surface in 
the bottom of the Nineveh syncline along the creek northwest of Low- 
land. No shafts should be sunk near Lone Pine, as this place is on the 
axis of the anticline, but a favorable locality for operations would be 
at the mouth of Potato Run or Shipe Run, 1 to 1^ miles above Lone 
Pine, or about the same distance downstream. At the mouth of 
Shipe Run the coal is believed to lie about 400 feet deep and below 
Lone Pine it is known by a well record to be within 340 feet of the sur- 
face. Perhaps this is the most favorable locality for operations on 
Little Tenmile Creek, but owing to the deflection in the strike of the 
beds here economical operations can be carried on only to the north- 
east, north, and west. The greatest area of most profitable mining 
can be obtained by sinking shafts on the Nineveh axis in any of the 
small valleys above Lowland. 
In developing the coal of any section the location and direction of 
operations will necessarily be guided by the boundaries of the land con- 
trolled by various companies and individuals, and the conditions 
influenced by such control must be met accordingly. After the coal 
has been "mined out" in the most favorable areas, intervening un- 
corked tracts will remain, the development of which must be under- 
taken according to various local conditions. It is probable that within 
one hundred years little Pittsburg coal will remain in this region. 
In case the Upper Freeport coal is proved to be of value, this bed 
can be mined in connection with the Pittsburg seam, by sinking the 
shafts 600 feet deeper. 
REDSTONE COAL. 
The next bed above the Pittsburg is the Redstone, which in the 
Monongahela Valley is a coal of some importance. It is a promising 
bed in the northeastern part of this quadrangle, but in other portions 
of the area it is little known. 
THICKNESS. 
The Redstone coal lies from 20 to 80 feet above the Pittsburg seam. 
At several points in the vicinity of Hackett and Finleyville it has been 
opened in country banks, and in one instance a thickness of 40 inches 
was measured, as shown in fig. 6, section 21. This was at a bank 
directly above the Nottingham mine. The interval to the Pittsburg 
seam here is 70 feet. This coal may possibly be the Sewickley, but 
the interval from the Sewickley to the Pittsburg is usually as much as 
110 to 150 feet, and is rarely known to be less than 100 feet. About 
2 1 miles northwest of Meadowlands a blossom of the Redstone occurs 
at an estimated interval of about 60 feet above the Pittsburg. Coal 
is reported in the Enterprise shaft, 20 feet above the Pittsburg bed and 
