59 



Pochuck and Jenny Jump Mountains, there is a long and narrow 

 zone of the overlying slate, Formation III. This starts from the 

 Wallkill, about three miles northeast of Deckertown, and ranges 

 in an attenuated ridge, until opposite Newton, passing about half 

 a mile east of Harmonyvale and Lafayette. It presents through- 

 out its whole length a regular synclinal structure, lying in the 

 middle of the trough of limestone, formed by the two parallel 

 anticlinal axes above referred to. About four miles southwest of 

 the termination of this narrow range of slate, another commences, 

 beginning between Reading's Pond and the turnpike, and passing 

 a little west of Greenville. Between this belt, which is very 

 narrow, and Grass Pond, near the anticlinal axis, occurs another 

 similar small range of the slate. The two parallel little ridges of 

 this rock lie. in the prolongation of the general synclinal trough, 

 between the two main anticlinal axes, separated, however, by a 

 short interposed axis of elevation, traceable between them from 

 Reading's Pond, southwestward. Each belt of the slate has, 

 therefore, the structure of a narrow synclinal ridge. 



Lying a little further to the northwest than the principal axis, 

 which passes Johnsonburg, there commences an axis which 

 elevates the limestone of the oval tract, extendinsr from near 

 Johnsonburg nearly to Sarcpta. 



The axis to which we now allude passes a little northwest 

 of the village of Hope, dying out beneath the slate towards 

 Sarepta. Between it and the northwestern dipping limestone, 

 uptilted by the axis of Jenny Jump, we may trace another long, 

 narrow, and nearly straight belt of the slate. This s'nall ridge 

 of the slate, like those {)reviously mentioned, contains a synclinal 

 axis running centrally along it. 



Besides the anticlinal axis which ranges a little northwest of 

 Hope, we have indications of another shorter one, lying between 

 it and the western margin of the limestone. But this lesser axis, 

 the presence of which explains the sweep towards the westward 

 at this place, at the edge of the upheaved rocks, has not been 

 accurately traced, owing to the fewness of distinct exposures. 



The last of the main anticlinal axis of the Kittatinny Valley 

 towards the northwest, is that of the limestone belt of the valley 

 of the Paulinskill. 



This axis may be pursued for nearly the whole length of this 



