984 GEOLOGY OF OHIO. 
The Upper Freeport Coal in York and Western Dover. 
This seam, which is here known as the Bayley’s Run coal, or Coal 
No. 7, has a fine development over a considerable territory in the town- 
ships named, and is already worked in three shipping mines. 
In Section 35, Dover, and in the adjacent Section 5, of York town- 
ship, the large mines of the Nelsonville Coal and Coke Company are 
situated at a point known as Happy Hollow. ‘The seam is here 6 feet 
in thickness when undisturbed. It lies from 70 to 80 feet above the 
main coal, the Lower Freeport seam generally occurring in the interval, 
at a height of 40 to 45 feet above the main coal. The Freeport lime- 
stones are finely developed in this region, the upper one lying 15 to 20 
feet below its coal. The Buchtel ore belongs in the clay that accom- 
panies and underlies the coal, being about 10 to 15 feet above the lime- 
stone. 
The coal has proved very steady and regular in a part of the terri- 
tory worked. In another part, where it was first opened, the bottom 
was uneven and the coal unstable to such a degree that mining became 
unprofitable. The structure of the seam, when at its best, is shown 
below: 
PIEURE SX 
STRUCTURE OF UPPER FREEPORT COAL (N27) 
ATMINES OF NELSONVILLE COAL & COKE co, 
HAPPY HOLLOW ., 
rs etl acetone Lommel ames lame es ll amen fl owes fl same ore pee en eee ote 
‘ - 
cme eee ee = es = 
I ON Sn nnn Sa 
CoN Sh Tos i ae 
Cate earn Gale ni 
Sul phuus Var ee 
Yure ~clovy Se ES Sy Seay Ao 
It is to be added, however, that the partings shown here, unlike 
the partings of the ereat seam, are inconstant and changeable. In other 
words, they do not characterize the seam. The frequency of shale 
partings in the Happy Hollow coal makes it somewhat hard to clean 
properly for market. It is softer than the great seam below it, breaking 
more easily in handling. Part of this body of coal is under shallow 
