9. MADISON TOWNSHIP. F 2 . 253 



Sherman s creek carries nearly all the water from the 

 township. Entering from Jackson at Bistline's mill, about 

 the middle of the west line of the township, it turns south, 

 cuts through the Chestnut Ridge anticlinal, flows for a mile 

 and a half to the south of it, turns north, again cuts through 

 the same anticline, and after passing Centre crosses it for 

 the third time, and continues to flow south of it. 



Buffalo creek drains the eastern end of Liberty valley and 

 passes into Saville township. 



A small area in Liberty valley is drained into Tuscarora 

 creek by the Horse Valley run. The central part of Madi- 

 son township is drained by a stream rising with a double 

 head in the narrow valley south of Conecocheague mount- 

 tain. Thence rt flows south over the confused ground 

 broken by the small anticlines in the east of the township 

 to Centre mills, and soon afterwards enters Sherman's creek. 

 It seems to have no settled name along its whole course, but 

 might well be named Centre run. 



Laurel run or Murray ' s run, the lower part of which 

 has been also known as Patterson^ s run, brings down the 

 water from Shaeffer valley and Henry valley, which is only 

 its westward continuation and pours it into Sherman' s creek 

 near Landisburg. It is for the county a considerable stream 

 and remarkably straight, being hemmed in between Bower 

 and the Blue mountains so that it cannot swerve from the 

 nearly direct course of those ranges.. 



The Medina sandstone, No. IV. 



Five outcrops of the sandstone are found in the township, 

 viz : (1) East Tuscarora mountain ; (2) West Tuscarora 

 mountain ; (3) Conecocheague mountain ; (4) Bower moun- 

 tain ; and (o) Blue mountain. 



These have been sufficiently described above, except the 

 second, only a small part of which lies in Madison town- 

 ship. It is brought up by the Horse Valley anticlinal and 

 forms a bold headland projecting into Liberty valley from 

 the west and effectually blocking all passage between the 

 two valleys. This anticlinal knot is aptly named in the 

 district the "Locking of the Mountains." 



