REPORT OF THE STATE PALEONTOLOGIST 1902 987 



above railway level. It is represented in the Dennis well at 

 Bradford by part or all of the 35 feet of sandstone with base at 

 1620 feet above tide. West of Bradford it is not satisfactorily 

 identified. It probably loses its character even as a sandstone 

 and soon entirely disappears westward. 



Salamanca conglomerate. No traces of the Salamanca conglom- 

 erate were found south of Ceres or near Eldred. In the Dennis 

 well at Bradford it is represented by the 23 feet of sandstone 

 with " a few pebbles," having its base at 1817 feet above tide. 

 West of Bradford it is found up Marilla creek and west of 

 Marilla summit it occurs on Corydon creek. It is again found 

 west of the Allegheny river both in Pennsylvania and south of 

 Steamburg in New York and from its elevation, its position in 

 the section and its lithologic character as well as by its tracing 

 westward, the writer concludes that it is the same as the Pope 

 Hollow conglomerate, which may be traced south from Pope 

 Hollow past Fentonville and Russellsburg by exposures at inter- 

 vals along either valley wall of the Conewango to the Asylum 

 quarry at North Warren. It may be traced westward up 

 Rhind's run by numerous exposures to a point on Jackson's run 

 about 2 miles east of Chandlers Valley. All exposures from 

 here to Sugar Grove are covered with glacial till but it is quar- 

 ried a short distance west of Sugar Grove, is found just above 

 the mouth of the Lottsville well no. I 1 and may be traced at 

 intervals along the Little Brokenstraw valley northward past 

 Grant station till there can be no doubt of its being the Panama 

 conglomerate. Tracing it southward from Lottsville it passes 

 about 225 feet beneath the Wrightsville conglomerate at 

 Wrightsville and is doubtless the pebbly sandstone found 

 " about 100' from the surface " in the Rocky Hollow well 2 about 

 a mile northeast of Wrightsville. It seems probable that far- 

 ther south this Salamanca-Pope — Hollow-Panama conglomer- 

 ate may be the same as the third Venango oil sand if that sand 

 has a northward representative at all. 



In this northwestern part of Warren county the shales and 

 thin soft micaceous sandstones that extend for a couple of hun- 

 dred feet above the Panama conglomerate weather into a steep 



Carll, J. F. Sec Geol. Sur. Pa. Rep't I 4 , p. 199, 232. 

 'Carll, J. F. Sec. Geol. Sur. Pa. Rep't I 4 , p. 236. 



