PHYSICAL GEOGRAPHY OF THE COUNTY. F*. 11 



eastern corner of Perry county, gapped by the Susquehanna 

 at Mt. Patrick and at Liverpool, are 7 and 8 miles long re- 

 spectively, and unite in a slightly elevated knob on the east 

 bank of the Juniata river a mile above Newport. Both of 

 them have perfectly straight sharp crests, long gentle slopes 

 inwards (into the cove), and outer terraces (that of Berry's 

 facing south, that of Buffalo facing northwest,) distinct but 

 not so strongly accentuated as those of Cove mountain, less 

 deeply cut by ravines, and never separated from the mother 

 mountain, for geological reasons to be hereafter explained. 



Unlike the sharp ellipse of Cove mountain, that of Berry's 

 mountain is gapped nearly to its base at its western end on 

 the southern side, by a little stream descending into the 

 Juniata. But a high divide behind the gap virtually closes 

 the upper end of the cove. 



It only remains to add, that on the eastern side of the 

 Susquehanna river, Berry's mountain runs on through 

 Dauphin county and returns as Peters' mountain (or Cove 

 mountain). Buffalo mountain also reappears on the east 

 bank of the river under the name of Mohon tango mountain, 

 and along its crest runs the north county line of Dauphin to 

 the northwest corner of Schuylkill count} r . 



As the Dauphin county anthracite coal basin is enclosed 

 at its west end by the Cove mountain in Perry county, so in 

 precisely similar style the west end of the Wiconisco an- 

 thracite coal basin is enclosed by Berry's and Buffalo 

 mountains in Perry county. 



This is the reason why the two coves resemble each other 

 so closely in shape, size, and position ; and it is also the rea- 

 son why no anthracite or other workable coal measures now 

 exist in Perry county, as will be more fully explained in 

 another chapter. 



Hill ranges. 



While mountains surround Perry county on the north, 

 west, and south, and penetrate it to a certain distance from 

 the east, the space thus enclosed must be regarded, topo- 

 graphically, as an extensive wedge-shaped area of open 

 country, traversed by many ranges of hills, which vary in 



