MONONGAHELA FORMATION 93 



been reached. The bed persists toward the southwest to the boimdary 

 line, though sometimes only 3 feet thick. In the extreme southwest it 

 is 175 feet below a massive sandstone. The coal is present in separated 

 patches across northwestern Clay and southern Eoane county, varying 

 from 2 to 4 feet. It underlies a sandstone which persists southeast- 

 wardly and is present at Clay courthouse, though the coal has disap- 

 peared. No higher coal bed is reported anywhere within Braxton, Clay, 

 Eoane, and the immediately adjacent part of Kanawha county, and at 

 the border of the last county the Pittsburg has only a few inches of very 

 impure coal. Thence it is wholly wanting for about 10 miles, but reap- 

 pears suddenly, about 4 feet thick, at the head of Two-mile creek, where 

 it shows : 



Feet Inches 



Roof coal 6 



Clay 1 



Bony coal 6 



Coal 3 



Bony coal 1 



Coal 3 6 



But its occu.rrence is very uncertain. It is mined within some small 

 areas near Eaymond City and Winfield, in Putnam county, where at 

 times it becomes thick and has a structure like that observed in typical 

 localities at the north; but for the most part in this Kanawha region 

 it is wanting and coal rarely appears above it; so that one recognizes the 

 force of Mr M. E. Campbell's statement, that no line can be drawn be- 

 tween Allegheny and Dunkard for the Kanawha area. He groups the 

 upper Conemaiigh, Monongahela, and Dunkard together into one, which 

 he terms the Braxton formation — a succession of greenish and reddish 

 shales and sandstones. Doctor White's sections show an abundance of 

 red shale in 200 feet above the Pittsburg horizon. The Pittsburg coal 

 bed appears to be practically wanting in Cabell county west from Put- 

 nam, but is caught near Central City and Huntingdon, where it is more 

 than 4 feet thick. A petty area remains in Wayne county 8 miles south 

 from Central City, where the bed is 3 feet thick. ISTo place is laiown 

 in Kentucky where the section is high enough to reach this coal.* 



In Gilmer county, west from Lewis, a massive pebbly sandstone very 

 like the Waynesburg overlies the Uniontown coal bed and is apparently 

 the same with that in the Sedalia boring and along the Baltimore and 

 Ohio railroad in Doddridge county. The Uniontown coal bed is shown 



* I. C. White : Vol. ii, pp. 144, 149, 162, 163, 181, 185, 186, 188, 190, 191. 

 M. R. Campbell : U. S. Geol. Survey folios, Huntingdon. 

 J. J. Stevenson : Proc. Am. Phil. Soc, vol. xiv, pp. 377, 378. 

 VIII — Bull. Geol. Soc. Am.^ Vol. 18, 1906 



