HYDROLOGY OF NEW YORK 



289 



Delaware. River System 



Delaware river. The main Delaware river drains the western 

 slopes of the Oatskill mountains, originating on the slope of Mine 

 mountain near the southwestern line of Schoharie county. It 

 flows southwesterly across Delaware county to Deposit, where it 

 is joined by Oquaga creek, a large tributary draining eastern 

 Broome county. The upper catchment area is long and narrow, 

 with numerous short lateral tributaries. It is precipitous and to 

 a considerable extent covered with a not very dense second-growth 

 forest. At Deposit the stream turns abruptly to the southeast, 

 forming the boundary line between New York and Pennsylvania 

 until Port Jervis is reached. At this point it encounters the foot 

 of the Shawangunk range and its direction of flow is again turned 

 to the southwest. It leaves New York State at this point. Above 

 Hancock the main stream is known as the West branch of the 

 Delaware river in order to distinguish it from the East or Pepac- 

 ton branch of the river. It is also sometimes called " Mohawk," 

 but should not be confused with Mohawk river, a tributary of the 

 Hudson. 



The declivity of Delaware river in New York State is shown 

 by the following elevations above tidewater: 



East branch or Pepacton river. The principal tributary of Dela- 

 ware river in New York State is the East branch of the Delaware 

 or Pepacton river, which rises in the eastern part of Delaware 

 and Greene counties, flowing southwest in a course generally 

 parallel to the main stream. The catchment area is broader and 

 more branching than in the case of the West branch. Several of 

 the tributaries head in small lakes and ponds. 



NeversinJc river. This river rises in the foothills of the Oatskill 

 mountains in the southwestern part of Ulster county. The east 

 and west branches unite to form the main stream near the south 

 line of Ulster county, from which point the main stream flows 



Feet 



At Lackawaxen 



At Deposit 



At headwaters. . 



600 

 1,886 



