5©2 



GEOLOGY OF OHIO. 



The following are analyses of the Rock Run coals. 1, Keith's new 

 mine; 2, Muskingum Valley Coal Company, top bend; 3, Muskingum 

 Valley Coal Company, bottom bend : 



Near the southern line is John B. Hershman's coal bank, one mile 

 above the bend of Will's Creek, on the east side and ninety feet above 

 its level. The bed is four and one-half to five feet thick and yields very 

 sound and black coal of apparently excellent quality. Near the bottom 

 is a thin seam of sulphury shale, which can be easily separated. It has 

 a thin roof of shale, and over this is sandstone. Below the coal is sand- 

 stone thirty feet thick, and under this a large bed of shale. 



Linton. — This is the next east from Franklin, and the south-eastern 

 township of the county. Except in the wide bottoms of Will's Creek, 

 the greater part of the surface is above the plane of Coal No. 6. The 

 road from Coshocton comes down to it near the north-west corner of the 

 township, six miles from Coshocton, where an old opening is seen by the 

 run, to the right-hand side of the road. At the school-house, near by, 

 and below the level of the coal, is a display of iron ore in oxydized blocks, 

 that might be supposed to indicate a considerable quantity, but these 

 outcrops are little to be depended upon. 



The road continues to descend toward the east, following the valley of 

 the run, and in the bed of this, two miles before reaching Jacobsport, 

 the blue limestone is seen well exposed over three feet thick. At 

 Jacobsport, over the bridge across Will's Creek, the same rock lies ten 

 or fifteen feet above the creek, in a bed measuring four feet ten inches 

 thick. Great blocks of it, of rectangular shape, and weighing many tons, 

 have fallen down and lie by the side of the creek. The rock abounds 

 in fossil shells, which, however, are obtained with difliculty. A little 



