118 - OIL AND GAS; OHIO, WEST VIRGINIA, PENNSYLVANIA. 
coal reaches as far north as the Burgettstown oil field and on the 
ridge west of Burgetts Fork it extends half a mile north of Quakers 
Knob. Owing to the relatively steep dip of the formations in the 
southern part of the township the conditions are unfavorable for 
making reliable measurements of intervals by comparisons of eleva¬ 
tion of outcrops. A comparison of the elevation of the three out¬ 
crops of Washington coal in the Burgettstown oil field with the 
elevation of the Pittsburg coal, as determined by the records of wells 
near each outcrop, gave the following results: 
Distance between top of Washington coal and base of Pittsburg 
Burgettstown oil field. 
Outcrop near William Russell well No. 1)_^_ 
Outcrop near William Russell well No. 5-1- 
Outcrop near William Russell well-No. 2__— 
Average 
coal in 
Feet. 
362 
366 
365 
364 
Waynesburg coal. —At the crossroads on the Jefferson Township 
line, south of Dinsmore, is the best outcrop of the Waynesburg coal 
in the township. It has a thickness of over 2 feet. East of this 
point the coal is thinner and somewhat difficult to identify. East of 
Burgettstown it is near the summit of the hill. At the center of 
the Ci 'oss Creek basin it is at about the level of the vallev road. From 
this point it rises to the southeast, keeping in about the same relation 
to the water level of the creek. 
Uniontown coal—The Uniontown coal has a thickness of about 8 
inches in this township. It was identified on the roads from Cherry 
Valley to Burgetts Fork and west of this fork. 
Benwood limestone .—The Ben wood limestone is well developed 
throughout Smith Township. The hills in the northwestern por¬ 
tion of the township are mostly capped with the Dinsmore ledges 
of limestone. In the northeastern portion all of the hills carry the 
Dinsmore and Bulger beds, and some of the higher hills reach to 
those of the upper part of the Benwood. South of the railroad the 
upper beds of the Benwood limestone remain above water level in 
Cherry Valley to the eastern boundary of the township. Up Bur¬ 
getts Fork the beds of limestone dip steeply, going under cover within 
2 miles of Burgettstown. 
Sewickley coal .—The Sewickley coal, which lies at the bottom of 
the Benwood limestone, is only about 8 inches thick in this town¬ 
ship. By searching, it can be located on nearly all roads. It is 
valuable only as a guide to geologic location. 
Redstone coal. —The Redstone coal is represented here by a thin 
layer of black shale above a bed of easily disintegrated lime¬ 
stone. The distance of this coal above the bottom of the Pittsburg 
