42 G 5 . REPORT OF PROGRESS. I. C. WHITE. 



The resolution of some structural difficulties will probably 

 follow the study of Lackawanna county. Until then it is 

 safe to speak of the great anticlinal (of White Deer mount- 

 ain) as virtually dying out in Herrick township between the 

 Elk mountains and the Lackawanna mountain. 



Although the Elk mountains are isolated, yet they seem 

 to be only a part the great range of the high lands which 

 border Tunkhannock creek and extend northwards between 

 Jackson and Thompson townships. 



The Wilmot Anticlinal described in the report on Brad- 

 ford county (G) ranges from the southwest corner of Susque- 

 hanna county northeastward into New Milford township, 

 where its gentle northwest dips cover a breadth of two and 

 a half miles. Its south dips are so exceedingly gentle that 

 they may be estimated at less than 1°, viz : at from 50' to 75' 

 per mile. So that in all the southern part of the county the 

 rocks are nearly horizontal. This is the state of things west 

 of the Elk mountains. 



The Towanda anticlinal of Bradford county, if it runs 

 on to Great Bend, is represented there by the gentle north- 

 erly dips observable along the river hills. 



The Rome- Warren anticlinal of Bradford county elevates 

 the rock strata of the northwest corner of Susquehanna 

 county enough to make all the hills Chemung, none of the 

 Catskill basal layers being preserved upon them ; but the 

 dips on each side of it could only be calculated from data 

 got by an instrumental survey. Practically the rocks of the 

 whole region may be considered horizontal. 



Returning to the northern part of Wayne county the map 

 shows the following peculiarities : 



1. An extraordinary collection of ponds in Preston town- 

 ship. 



2. That these ponds are drained in all directions : — north, 

 by the Starucca ; northeast by the Chehocton ; east, by the 

 Equinunk ; south, by the Lackawannock ; and southwest, 

 by the Lackawanna. 



3. That the summit plateau of the region occupied by 

 these ponds is connected directly with the Moosic mountain 

 end of the great synclinal. 



