IV. 



SOME PREGLACIAL DRAINAGE FEATURES OF 

 SOUTHERN OHIO. 



With Plates. 



By W. G. Tight. 



[This paper was presented to the Ohio Academy of Science at its winter 

 meeting, Dec. 26 and 27, 1896, under the title of "The Big Kanawha Drain- 

 age."] 



Contents. 

 I. Introduction. 



Some Features of the Ohio River Valley. 



The Big Sandy Valley of Kentucky where it enters the Ohio. 



The California Valley from Scioto ville to Waverly. 



The Symmes Creek and Salt Creek Valleys. 



Correlation of the Drainage and Topographical Features. 



A Pseudocol. 



I. INTRODUCTION. 



In the Spring of 1895 ^*- ^^^ "^Y pleasure to spend some time in 

 field work in southern Ohio and parts of Kentuckey and West Virginia. 

 The results of that work were at once prepared for publication but 

 were withheld on account of the fact that it did not seem that sufficient 

 work had been done in the field in a certain locality to complete the 

 data in hand and arrive at a satisfactory conclusion. The desired data 

 have recently been obtained and inserted in the original manuscript in 

 the proper location with the necessary alterations. 



Lest there should be some misunderstanding it seems best to state 

 here certain facts with reference to the investigation of this region in 

 question. As will appear later in this paper in their proper order the 

 following facts were determined during the investigations in 1895. (^) 

 That there was undoubtedly an old col in the Ohio Valley just above 

 Portsmouth. (2) That there was an old high level valley running 

 northward from the Ohio Valley between Sciotoville and Wheelersburg. 

 (3) That there was an old valley opened eastward from the Scioto 



