942 GEOLOGY OF OHIO. — 
mine has been opened by the Ohio Central Coal Company, and is now 
operated by W. P. Rend. It is located in Section 7. The shaft is 130 
feet deep, and the coal hasa thickness of 6 feet 4 inches, partings 
included. ‘The structure of the seam is shown in the accompanying 
diagram : 
It is not certain that these partings correspond to those of the seam 
further north. 
There is without doubt much valuable coal land of the great seam 
in this township, but it cannot be denied that-the development of the 
region northward has thrown a cloud over it. It is no longer allowable 
in wise and honest mining enterprises to presume upon the steadiness 
of the seam or to count all its coal available. Each of these points 
must be properly tested, and every mining property must be proved 
and established for itself. 
The Upper Freeport Coal in Trimble Township. 
This seam has considerable value in the Sunday Creek Valley ; 
Dover and Trimble townships, in particular, contain one of the most 
valuable basins of this coal in the western coal field. It has long been 
known in this district as the Bayley’s Run coal, the same being taken 
from Dover township. It has been mined for the entire local supply 
of the Valley for many years, banks being opened on very many farms. 
The seam generally carries 4 feet and a few inches of coal in two 
benches, approximately equal, separated by a shale parting of two or 
three inches. So far as worked, the seam has proved itself steady and 
regular. There is no doubt that it will afford a safe basis for mining 
for the general market. 
One railroad mine has lately been opened in the township at 
Jacksonville. <A section of the coal is given below: 
FIGURE XKOW 
STRUCTURE OF UPPER FREEPORT COAL(N27) 
AT JACKSON'S SHAFT. BELOW TRIMBLE, 
SUNDAY CREEK VALLEY. 
" 1 
--> 
Cov) 2 peat, Sa 
R 
ee eae 
10 to 4- 
a 
ea 
Se Regs a a 
Coa BB 
¥use ~cLoy—— . W ee 
