26 F\ REPORT OF PROGRESS. E. W. CLAYPOLE. 



the county line, between Tuscarora and Coneeocheague 

 mountains, 8 miles west of Ickesburg. Another branch 

 issues from the little cove in the heart of the Tuscarora 

 mountain, and Hows south past Ickesburg to the main 

 creek, £ mile below Roseburg. A third branch, from the 

 south, encircles the Roseburg hills, heading where Little 

 Buffalo creek heads, west of Mannsville. The rest are in- 

 significant. Its whole length (in a straight line across the 

 map) is 19 miles, but its windings double the distance. 



Raccoon run drains for 10 miles Raccoon valley at the 

 foot of Tuscarora mountain, with the limestone ridge on its 

 right (through which it receives a little branch at Don- 

 nally's mills) all the way to the Juniata half a mile below . 

 Mi Hers town'. 



Ft siting Creek run drains for 8 miles the valley between 

 the Blue and Second mountains, past Keystone and Fen- 

 wick, and enters the Susquehanna below Marysport. 



Cove creek, 4 miles long, drains the Cove into the Susque- 

 hanna a mile below Duncannon. 



Hunter s run, 5 miles long, drains the Berry-Buffalo 

 mountain cove into the Susquehanna at Mt. Patrick. 



Barge?' 's run, 5 miles long, drains most of Liverpool town- 

 ship into the Susquehanna just below Liverpool. 



TJ7/^ Cat run locks its head branches (around Liberty 

 Hall) into those of Barger's run, and drains the south half 

 of Greenwood township into the Juniata half-way between 

 Millerstown and Newport. 



( bcalamus creek is a large and important stream entering 

 Perry county from Juniata county through a little gap in 

 the sandstone and limestone ridges 3 miles north of Millers- 

 town. It flows around the foot hills at the east end of Tus- 

 carora mountain, and joins the Juniata river a mile below 

 Millerstown. 



Other smaller runs, draining the country between the two 

 rivers, are too numerous to merit special description. 



The Valleys of Perry county. 



It Ls always a source of embarrassment to a geologist, when 

 called upon to describe an area bounded by artificially ar- 



