366 GEOLOGY OF OHIO. 



tion, on the Tuscarawas Valley Railroad, four hundred and ten feet above 

 Lake Erie. Borings to discover coal have been made at several places in 

 Guilford, but all without success up to the time of the Geological Survey, 

 when it was understood that the railroad company was furnishing money 

 for further tests by boring. 



No true conglomerate rock was seen in the township, nor were any fos- 

 sils to be found in the sandstone and shale. So far as can be made out, 

 the upper rock is a fair grit, the top layers being shelly or broken. First 

 below this sandstone is a soft shale, which in turn is succeeded by a hard 

 but brittle shale that has considerable grit in it, as can be seen at the 

 Fall Creek exposures, where the color is light gray. 



Some years preceding the Survey drilling was done on Mr. Jacob 

 Smith's land, in the bed of Fall Creek, a half mile west of the north and 

 south center road. The bluff above, where the drill was put down, shows 

 the succession of the rock about thirty feet. It is a hard, brittle shale, 

 of a light dove color, with an occasional layer a few inches thick, of a 

 bluish shade, without grit. There is rarely a hard concretionary mani- 

 festation, and occasionally kidney ore. Below this bank the drill was 

 put down forty-five feet, through rock quite like that in the bank above. 



The sandstone is quarried in the ravine of Fall Creek, one and a half 

 miles east of Seville; it is also quarried at a place just over the county 

 line in Wayne. Whetstones and grindstones have been somewhat ex- 

 tensively worked out of the rock in the north-east corner of the township 

 by David Wilson, Esq. The grit is coarser but not so sharp as that 

 worked on Webster Hard's land, in Wadsworth. All the rock seen in the 

 township is below the coal, and apparently belongs to the Waverly group. 



An ancient fort, now quite obliterated, once stood on land one mile north 

 of Seville, and one-half mile east. 



HINCKLEY TOWNSHIP. 



Hinckley township is in the north-east corner of the county. The soil 

 is loamy, for the most part, affording a growth of chestnut, walnut, hick- 

 ory, and oak timber. 



The Carboniferous Conglomerate is exposed more abundantly in Hinckley 

 township than in any other in Medina county. Immense perpendicular 

 ledges, having very curiously worn sides and caves, from which issue fine 

 springs of never- failing water, are characteristic of this township. The 

 stroller over these extended rocky ledges sees many astonishing pass- 

 ages in the rock made by the falling away of large masses consequent 

 upon the undermining of the softer rock below. The small river run- 

 ning northwardly through the township was once a powerful wearing 



