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



and the valley beds themselves very narrow. The valley of 

 the Delaware river is a fine example, with its narrow water- 

 way, its gorge-like cross section, and its high steep side- 

 walls made by the horizontal sandstone edges of the Cats- 

 kill strata. 



In striking contrast to this is the broad and gently slop- 

 ing valley of the Susquehanna river flowing between low 

 rolling hills of soft Chemung rocks. 



TlieMoosic divide : — While the water courses of Susque- 

 hanna county drain wholly into the Susquehanna river, by 

 streams which flow northward, southward, westward and 

 south west ward, the water courses of Wayne county drain 

 wholly eastward and southeastward into the Delaware river ; 

 except a small area in the northwest corner, which drains 

 northwestward. 



The middle county line is therefore along a grand divide, 

 represented by the Moosic mountain range, a northward 

 prolongation of the united mountain walls of the Carbon- 

 dale coal basin. 



The following are the principal streams of the district, 

 with short descriptions of their direction and character ; but 

 the reader is referred to the map which accompanies this 

 report for specific details. 



The Susquehanna river enters the district from New 

 York at the northeastern corner of Susquehanna county, 

 but after going south five miles it turns abruptly west and, 

 after continuing about 10 miles makes its Great Bend and 

 passes northward back into New York. There it again 

 veers west, and flows roughly parallel to the State line, and 

 from 3 to 10 miles north of it, to the mouth of the Che- 

 mung river at Waverly. Here it bends south into Brad- 

 ford county, which it crosses to its southeast corner and so 

 keeps on southeastward across Wyoming county into Lu- 

 zerne. Where it enters Wyoming county it is only 4 miles 

 from the southwest corner of Susquehanna county ; thus 

 making a great circle from the Great Bend round through 

 Bradford county. 



Its rate of fall is shown by the following levels taken 



