354 F a . REPORT OF PROGRESS. E. W. CLAYPOLE. 



the geology of Toboyne township. It is the main component 

 in the great ridges that traverse its western end, and which 

 consist chiefly of a number of zigzags formed by the outcrop 

 of this sandstone. The ranges are in succession from north 

 to south as follows : 



1. 

 2. 



3. 



4. 

 5. 

 6. 



7. 

 8. 



West Tuscarora. 

 Conecocheague. 

 Round Top. 

 Rising mountain. 

 Amberson ridge. 



North Bower mountain. 

 Soutli Bower mountain. 

 Blue mountain. 



The township is thus divided, especially at its western 

 end, into a series of narrow valleys separated by high rough 

 mountain ridges seldom traversed except in quest of game 

 and honey, or by woodmen and bark-peelers. 



1. West Tuscarora mountain is geologically only the 

 northern half of the arch of Conecocheague, as may be seen 

 by looking at the diagram given above in the account of the 

 rocks in the Horse valley. East Tuscarora mountain having 

 subsided to the general level of the country very near the 

 place where Conecocheague becomes double, the name is 

 transferred to the northern part of the latter. But in reality 

 the two are quite distinct. (The same transfer of name oc- 

 curs elsewhere, as for example at the long narrows below 

 Lewistown, where the two anticlines bearing the name of 

 Shade mountain are geologically distinct.) 



West Tuscarora forms the township and county line sep- 

 arating Juniata county from Perry. It is cut down in one 

 place to water level by Horse Valley run, which passes out 

 to join Tuscarora creek at Waterford narroios and carries 

 off all the drainage of that part of the valley which lies in 

 Toboyne township. A second gap in the range is Concord 

 narrows in Franklin county through which passes the main 

 stream of Tuscarora creek. 



Conecocheague mountain forms a long, straight, even- 

 crested ridge from its commencement in Madison to its ter- 

 mination at Round Top without break or gap of any kind. 



