82 GEOLOGY OF OHIO. 
The Valley of the Stullwater.—The geological formation of the country 
bordering the Stillwater has been already pretty fully described. The 
dip of the rocks being for the most part south-easterly, and the Stillwater 
running north-westerly, it crosses in its course a large number of strata, 
and affords an unusually complete section, reaching from the Upper Coal 
Measures above the Pittsburgh seam, in Belmont county, to the horizon 
of Coal No. 4, near Hastport. Where it enters Tuscarawas county, Coal 
No. 7 is the highest important member of the series, here of unusual 
excellence. With this coal extending from Stillwater to Newport, and 
No. 6, so well developed about Uhrichsville, the valley is well supplied 
with coal, and it is also probable that in Rush township valuable depos- 
its of blackband will hereafter be discovered. 
The. Valley of the Conotton.—The Conotton, in its descent from Leesburg 
to Zoar Station, passes down from Coal No. 7 to Coal No. 3, and in a large 
part of its course it opens what promises to be excellent developments of 
Coal No. 6. In places, Coal No. 5 is also found, of good thickness, while 
the hills on both sides contain more or less important deposits of black- 
band and mountain ore. The extension of a railroad through this val- 
ley will certainly develop a large amount of mineral wealth, and make 
this, which has hitherto been barren ground, an important contributor 
to the business of the county. 
The Valley of Sugar Creek.—But little has been said on the preceding 
pages in regard to the country bordering Sugar Creek, inasmuch as its 
resources have been, up to the present time, imperfectly developed. In 
its northward course, from Auburn to Deardofi’s Mills, Sugar Creek drains — 
a district which is generally high, and where the hills rise high enough 
to include the blackband ore. Recent explorations lead to the convic- 
tion that on both sides of the county line ore-beds exist which will prove 
to be of great value. Coal No. 6 is freely opened in the lower part of the 
walley,and in many places is specially good. At Deardoff's Mills the 
stream cuts down nearly or quite to the base of the Coal Measures, and 
exposes a bed of coal which has been supposed to be No. 1. No explora- 
tions have been made to determine this question, but it seems to me very 
doubtful whether this is the Massillon seam, for several reasons, viz.: 
ist. It lies too near the overlying coals. 2d. It is overlain ‘by a biack 
fossiliferous shale, which, though containing a peculiar group of. shells, 
most of which are new, is, apparently, a coal-measure bed. 3d. A little 
way east from Deardoff’s Mill the Zoar limestone is seen lying but little 
above the level of the bed of coal in question. 
The hills south of Deardofi’s Mill rise above Coal No. 7, abhi two 
