DRAINAGE CHANGES IN THE MOOT^S RUN AREA, 
LICKING COUNTY, OHIO^ 
Harmon A. Nixon and Dexter J. Tight 
Introduction 219 
Evolution of glacial theories, as applied to Ohio’s drainage systems 
General discussion of drainage changes 
Drainage changes in the Moot’s Run area 222 
Detailed description of Moot’s Run and its tributaries 
Discussion of drainage factors, as applied to this area 
Inadequacy of piracy, to account for these changes 
Inadequacy of diastrophism, to accomplish these changes 
Adequacy of glacial interference, as applied to this area 
Resume of glacial movements over the area 
Influence of glacial invasion on subsequent drainage of area 
Summary 230 
Introduction 
Evolution of glacial theories, as applied to Ohio’s drainage systems. 
One of the problems that early attracted the attention of our 
first State Geologist, Prof. J. S. Newberry, and his assistants, 
after the organization of the permanent Geological Survey of 
Ohio in 1869, was the problem of establishing the relationship 
which existed between our present drainage systems and the 
drainage of Ohio before the glaciers of the Pleistocene period 
advanced into the area and deposited their load of drift. After 
a little more than three years of investigation, they published, 
along with other results, their tentative solution of this problem. 
From a study of Professor Newberry’s work^ in the Cuyahoga 
River Valley and its vicinity, and of E. B. Andrews’ investiga- 
tion^ in the southeastern part of the state, we find that they are 
1 This paper is a report on investigation carried on under the direction of Pro- 
fessor Carney, of Denison University, to fulfill requirements in Courses 9 and 10 
of the Geological Department. 
2 Geological Survey of Ohio, vol. ii, 1874, p. 444. 
^ Ibid., vol. iii, 1878, Report on Richland, Knox and Licking Counties, pp. 310- 
361. 
219 
