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



content to estimate its height from the top of adjacent peaks 

 of known elevation three miles away ; the result of this esti- 

 mation makes the summit of the knob 2250' A. T. and I feel 

 safe in asserting that this cannot differ more than 100' from 

 the true elevation. 



That a peak of this kind should be left towering 400' to 

 500' above all the surrounding country, is sufficient evidence 

 of the vast amount of rock material that has been worn 

 away from the surface of Wayne county by erosion. 



It is only about eight miles away from the Delaware river, 

 and yet it rises 1500' above the channel of that stream. 



The strata on the eastern side of the Delaware are continu- 

 ous with those in Big Hickory knob. It follows that the 

 Delaware river has cut its channel down through at least 

 1500' of rock strata ; and very probably quite as much more 

 has been worn away above the summit of Big Hickory 

 knob, which, as an island surrounded by the ice, escaped 

 erosion and retained pre-glacial elevation. While the Drift 

 is abundant on all sides of the knob, it entirely disappears 

 as we approach its summit. 



Little Hickory knob lies about three miles northwest from 

 Big Hickory but does not reach to so great an elevation by 

 about 25(V or 300'. 



The drainage is mostly southward into the Dyeberry, 

 which empties into Lackawanna at Honesdale, though the 

 the north-eastern corner sends its water through Duck Har- 

 bor pond off eastward to the Delaware by way of Little 

 Equinunk. 



The head-waters of the Dyeberry in this township, have 

 been dammed up by the Delaware and Hudson Canal Co. , and 

 form large ponds in which the surplus water is stored dur- 

 ing rainy weather, and gradually let out to supply the canal 

 during seasons of drouth. The company has three such 

 ponds in this area, viz : Upper Woods, Lower Woods, and 

 Hose. 



The rocks of this area belong entirely to the Catskill 

 series. 



Just west from Bileyville the base of the Honesdale 



