MAIN MORAINIC SYSTEM OF THE SCIOTO LOBE. 385 



Railway, and passes northwestward to Bloomingbiirg. From that village 

 it passes northward along the east side of a tributary of Paint Creek to its 

 source near Midway, and continuing north passes the Madison County 

 infirmary, 3 or 4 miles west of London, near which it becomes merged with 

 earlier members. Its breadth is a mile or more. Reference is made to this 

 belt by Chamberlin in his paper in the Third Annual Report. 



The combined moraines pass northward through northeastern Clark, 

 eastern Champaign, and southeastern Logan counties, constituting a belt 

 6 to 9 miles wide, the width decreasing northward. Near Bellefontaine it 

 connects with the main morainic system of the Miami lobe, as already 

 indicated (pp. 354, 382). 



RANGE IN ALTITUDE. 



From the northern end of the interlobate tract on its eastern margin, 

 westward to the meridian of Wooster and Millersburg, the moraine has few 

 points that exceed 1 ,300 feet above tide, and none that fall below 800 feet. 

 A change of altitude of 250 feet is frequently made, however, within a 

 distance of 1^ to 2 miles in passing from ridges to valleys. In Killbuck 

 Valley, between Wooster and Millersburg, the moraine is lower than at any 

 other part of this shoulder of the lobe, being but little more than 800 feet 

 above tide. The hills near this creek are capped by drift ridges of morainic 

 type at an altitude of fully 1,100 feet. Near Mansfield, on high points 2 

 or 3 miles southwest of the citj^, di'ift knolls occur at an altitude of 1,490 

 feet (barometric). The principal valleys in that vicinity are 1,100 to 1,150 

 feet, making the range in altitude within short distances about 350 feet. 



In the eastern limb of the main lobe the strongest part of the moraine 

 occupies the divide between the Scioto and the Muskingum and Hocking 

 drainage systems, but owing to the hilly character of the region the range 

 in altitude is not slight. There are parts of the Hocking and Licking 

 valleys where the altitude is but little more than 800 feet above tide, while 

 on neig'hboring hills it is 1,100 to 1,200 feet or more. In many places 

 changes of altitude of 250 to 300 feet occur within a mile or two. 



In the Scioto Valley and the lower portion of Paint Creek Valley 

 morainic features are developed at an altitude as low as 700 feet above tide, 

 while on neig'hboring hills north of Paint Creek they occur at an altitude 

 of 1,150 feet. 



In the western limb the outer member follows so nearh' the water 



