54 GEOLOGY OF OHIO. 
As seen in the last section, the strata are rising slowly to the south- 
ward, the Clay Vein coal having risen almost to railroad grade. It is 
found level with the track, one-half mile above McCoy’s station. The 
Groff coal is worked here, 210 feet above the Clay Vein. 
Brush Creek: coal. 
te RV alee een eee cen seats “geereisvle's wanlS amend See aaeotee ea nelae means mee eree 210 feet. 
Lower Kittanning coal. 
Near McCoy’s Station, at Einsinger’s Hill, the following elements 
occur : 
Crinoidal limestone, 4 fee 
Tintervalins. ic... isdicsssscsccacssctsecseessagasescencceceReracseeseeresoseecoeca: 278 feet. 
Lower Freeport coal, once mined here. 
0 OC) aie Gee ERR ARE ROC BEDE RCOO aD HOCCAC OSE DOO OEONONOOEI00006000000,000000U00e5 12005 
Lower Kittanning coal, 3 it. 
One-half mile below McCoy’s, at Porter, Miner and Co.’s works, 
we find the Clay Vein 8 feet above the railroad. The following section 
section was obtained here: 
Brush Creek coal, outcrop. 
Tin tervadlesc.scsacios.nc ond ce co aiie owe tate Saee iettels ee aie eatse nr emetneene eee ooo 72 feet. 
Coal (LowerFreeport?), once worked. 
Tnterval iscccensiv sev seev chs odansedensceeclovads soc sueseeas satine ees eoenrecoe ern ni tnt Abia 
Upper Kittanning coal, 18-inch vein worked. 
Tn terval |. :.\., sceccdsecscsesesecesces caciivccse ceeesoosetes osusccumiteeres see enemes 63 “ 
Lower Kittanning coal, 2 ft. 6 in. 
From near this point the southerly dip, which has been interrupted 
for a few miles, is resumed and the worked outcrop of the Lower Free- 
port coal is seen to fall off rapidly to the southward. The coal seam 
which is marked with a question may possibly be the Upper Freeport, 
but with such facts as we have to judge from, it is more like to be the 
Lower Freeport seam, but the interval is excessive. 
At Freeman Brothers Clay Works, ?-mile below McCoy’s Station, 
the Clay Vein and Roger Vein are both worked. The interval is 
106 feet. 
Lower Freeport coal. 
Interval orc. saesevnciseseds eestecscacvcscses Lotennesan scetevesadseres aseenmerents 106 feet. 
Lower Kittanning coal. 
