- , ' OP THE 
UNIVERSITY of ILLINOIS. 
THE 
AMERICAN GEOLOGIST. 
Vol. XX. JULY, 1897. No. 1 
THE RED RIVER AND CLINTON MONOCLINES, 
ARKANSAS. 
By John F. Newsom, Univ. of lud., Bloomiugtoo- 
With an introduction by John C. Beannek. 
(Plate I.) 
Introduction. 
During the progress of the late geological survey of Arkan- 
sas I became interested in the peculiar drainage about the 
eastern end of the Boston mountains, the parallelism of some 
of the streams, the similarity of certain of their elbows, the 
angles they make with certain other streams, and the relations 
of these streams to certain structural features of adjacent re- 
gions with whose geology I was acquainted. In order to as- 
certain the relations of the geologic structure to the drainage, 
professor J. F. Newsom, then one of the assistants of the geo- 
logical survey, now professor of geology in the University of 
Indiana, was directed to work out the geology along what is 
described in the present pai)er as the Red river and the Clin- 
ton monoclines. 
It was found that the northeast-southwest directions of 
Little Red river and its tributaries are due to these monoeli- 
nal folds'. It is an interesting fact that the Red river fold is 
in the axis of Wolf bayou which flows into White river, and 
that this line of disturbance passes north of Dean mountain, 
crosses White river four miles above Batesville, crosses Polk 
