900 GEOLOGY OF OHIO. 
supply, or, in a few cases, for the general market. In the westernmost 
sections the coal is rising to its final outcrop, and often has light and 
inadequate cover. In the eastern and southern sections it is buried 
deep, but not so deep that it is not easily accessible from the ‘main val- 
leys that are cut down to and slightly below its level. We may be sure 
that all of this steady and excellent seam will be called for, and will be 
taken by large mining operations, at no very distant period. A score 
or two of years, at most, at present rates of production, will clear out 
all of the more inviting fields of thick coal that are now known, and 
then the demand for such fields, as Pike township presents, will certainly 
arise. 
The thickness of ie coal throughout the township averages 3 feet 
and 2 or 3 inches. The proportion of it that is known that falls below 
3 feet is very small. A large acreage is to be found that reaches just 
3 feet. A considerable part of the territory will yield 3 feet and 4 to 
6 inches of clean coal. 
The Lower Kittanning coal (No. 5) has some excellent basins in 
the township, but the seam appears to be less extensive here than in 
Clayton township. Near New Lexington, and, indeed, within the corpora- 
tion limits a valuable body of this seam is known. Itisas highly valued 
as the upper coal for ordinary use. It holds its usual thickness of 4 
feet and over, when at its best, and it is also characterized by the usual 
unsteadiness of the seam. 
It is to be noted that the Clarion coal (No. 4a) of the local section 
is almost everywhere present in this township where its horizon is seen. 
It belongs about 15 to 25 feet below the Lower Kittanning. It rarely 
exceeds 15 inches in thickness. 
On the western side of the township, in Sections 18, 19, 30 and 31, 
the Middle Kittanning seam has been long and largely worked for 
shipment on the Shawnee branch of the Baltimore and Ohio Railroad- 
The section of the coal at this point is shown in the following diagram : 
FLEURE LK 
STRUCTURE OF MIDDLE KITTANNING CO ALIN?6) 
AT BRIST 
Bowe Coa jbakew down j iv. entriese 
Poctiwe . iw SU ARRAN lL Walls aus 
Gaealsisiotbacall whine sek ies 1 
Slate Potting do cut ol en ell 
Coab, bobbtora Meera i 
Fuce - clay Boll, eh ia wera ena 
