COAL MINES OF GALLIA COUNTY. 1047 
useful only as giving to local explorers clues which they can safely 
follow. 
FIGURE CX Lk 
STRUCTURE OF MIDDLE KITTANNING 
COAL (N26) ON LANDS OF MTVERNON 
FURNACE, 
C7 bay Se clay shales 
CGT & ee 
_— ii Sl 
GALLIA CouNTY. 
The Sheridan seam appears to extend continuously from Washington 
township to the eastward, as far as the Valley of Raccoon Creek, in Perry 
township, where it falls finally below drainage. At least the seam is 
shown in this valley in good condition and in good proportions. Its 
structure is indicated below: 
This section is quite familiar and reassuring. It would be a 
normal section in the Hocking Valley. Not only do the three regular 
benches again apear, but the supplementary seam of the Hocking 
Valley is also represented. The 3 inches of coal and the black slate of 
the roof show an approach to the conditions under which the great 
phase of the seam was built up. 
The coal has been worked for many years at Evans’s mill for steam 
production and for local supply. It stands in high estimation, and cer- 
tainly gives promise of a field of great value for future mining enter- 
prises. 
