140 GEOLOGY OP OHIO. 



though sometimes by shale. These partings may increase in thickness 

 in short distances, so as to form two workable seams illustrations of 

 which may be seen at Glasgo's, in Holmes county, and in the shaft at 

 Uhrichsville. 



In Licking and Coshocton counties Coal No. 4 is locally from four to 

 six feet in thickness, and is cannel of good quality. This is the Flint 

 Ridge cannel, and that which is mined in Bedford and Jefferson town- 

 ships, Coshocton county. 



Along the line of the Pittsburgh, Cincinnati and St. Louis Railroad, 

 between Coshocton and Trenton, Coal No. 4, with its limestone, generally 

 lies at the base of the hills, though sometimes carried beneath the sur- 

 face by local waves. At Uhrichsville Coal No. 4 is found nearly seventy- 

 five feet below the level of the Stillwater, as has been proved by borings 

 and a shaft. It is here double, the two portions being separated by from 

 six to twelve inches of fire-clay. In borings made at Dennison, three 

 miles distant, they are reported as separated by fifteen feet of fire-clay. 



From Trenton Coal No. 4 may be traced up the valley of the Tusca- 

 rawas as far as Navarre, in Stark county, up the Sandy as far as Minerva, 

 and up the Nimishillen to the summit in Green township, Summit 

 county. In all these valleys it lies above the streams, dipping with 

 them, and is exposed almost continuously, and the great changes which 

 it exhibits may be accurately noted. 



Between Trenton and Zoar it is generally a cubical coal, from one and 

 a half to three feet in thickness, and is of little value. At Navarre, on 

 the west side of the river, it becomes five feet thick, with two clay part- 

 ings, and looks well. On the east side it is two and a half feet thick, 

 and poor. At Zoar station it is two feet thick, a cubical coal. Five 

 miles above, in the valley of the Connotton, it is five feet thick, very slaty, 

 and worthless. At Sandyville it has been mined by J. A. Saxton, Esq., 

 is a fairly good coal, but varies in thickness from two to five feet. At 

 Kelley's Point it is an excellent cannel, two and a half feet in thickness. 

 At the mouth of Indian Run, below Waynesburg, and on the Trumbull 

 Company's property, it is from four to seven feet in thickness, in two 

 benches, of which the upper is an open-burning coal closely resembling 

 the Briar Hill. In the valley of the Nimishillen, below Canton, Coal 

 No. 4 is usually a cubical coal, too thin to be worked. At Browning's 

 Mill, however, it swells to a thickness of six feet, is partly cannel, and 

 very impure. About Canton it is largely mined, is a soft, bituminous 

 coal, four feet thick, and of fair quality. At Ruthauff s Mill, five miles 

 further north, it is seven feet in thickness, with two slate partings. At 

 Greentown it is four to five feet thick, a bituminous coal of good quality. 



