168 GLACIAL FOKMATIONS OF ERIE AND OHIO BASINS. 



southwest and pass northward through Copley Marsh to the old Cuyahoga, 

 a few miles northwest of Akron. 



These courses are suggested on the assumption that the old line of dis- 

 charge passed northward to Massillon; but as noted above there is a pos- 

 sibility that it led eastward to Canton. In that case it is not certain that 

 the discharge was into the Cuyahoga. It may prove to have been north- 

 eastward to the Mahoning at Alliance and thence northward into the Grand 

 River Basin. It seems, however, quite as probable that the discharge would 

 have been northward from Canton past Turkeyfoot Lake and Copley 

 Marsh to the Cuyahoga. Notwithstanding this uncertainty concerning the 

 course of discharge, there is no question that the old Upper Tuscarawas 

 was tributary to the Lake Erie Basin. 



This northward-flowing system apparently embraced the greater part of 

 Sugar Creek drainage basin and all the eastern tributaries of the Tuscarawas 

 from One Leg Creek northward to the source of the river, though these tribu- 

 taries have had their drainage basins greatly modified. At the supposed old 

 divide on Sugar Creek, near Strasburg, the valley becomes reduced to 

 scarcely half the width of the portion above, though the narrowest part 

 has a breadth of nearly one-fourth of a mile. The evidence for the former 

 northward discharge of this creek is greatly strengthened by the presence 

 of a broad, partially filled valley leading northward from the bend at Beach 

 City to the Tuscarawas at Navarre, which is utilized by both the railway 

 lines that pass through these villages. The possibility that the lower course 

 of Sugar Creek was a line of interglacial discharge for the old Upper 

 Tuscarawas was considered above. 



It is probable that only the lower course of Nimishillen Creek was 

 tributary to Sandy Creek, the old divide being 3 or 4 miles below Canton, 

 where the valley becomes very naiTow. As noted above, it is uncertain 

 whether the headwater stream of this drainage system discharged westward 

 past Richville through an abandoned valley to the old Tuscarawas at 

 Navarre, or instead met the old Tuscarawas at Canton. The northern 

 portion of this old drainage system is evidently not in harmony with pre- 

 glacial lines. Whether the extent of the present system is about the same 

 as the old system is not easy to determine because of the great body of 

 drift in that region. 



