Bed River and Clinton 3Ionoclines. — Newsom-Branner. 1] 
in the northeast corner of 10 N., 26 W., owes its elevation to 
this monocline. Through this region it is almost everywhere 
a breached fold, leaving the south face of the mountains, 
which have an elevation above the valleys of 800 to 1,500 feet, 
standing out abruptly in bold relief above the country to the 
south. 
The monocline is accompanied by a corresponding shallow 
syncline more or less <.'ontinuous at its south side. The south 
dipping sandstones usually form parallel ridges, the shales be- 
tween the sandstone beds forming the valleys. The ridges are 
seldom of much prominence and are never continuous for a 
great distance. 
The mountain escarpment to the north of the fold has at 
its top massive sandstone beds often forming vertical cliffs 
100 feet high. These beds are repeated in low ridges at the 
south side of the monoclinal fold, and are usually from one- 
half mile to one mile south of the mountain escarpment. 
There is a very prominent sandstone cliff in the south fiice of 
the mountains through townships 11 N., 23, 2-1 and 25 W . 
The sandstone bed that forms this cliif comes low in the l>ase 
of Mulberry mountain, owing to the d3nng awa}?^ of the mon- 
oclinal fold to the south. This bed repeated at the soutli side 
of the monocline forms the most prominent of several low 
east-west ridges formed by the south dipping sandstones, 
through the north part of these townships. 
This ridge is continuous, except where gaps are cut through 
b}" tile southward flowing streams, from 1 I N., 2:i W.. section 
31, the south half, to 10 N., 23 W., section 10. tlie north hall'. 
I'he dip of the sandstone ])ed forming it is 20-25 degrees south, 
becoming near>.'r horizontal at its western end where the mon- 
ocline dies out. This sandstone bed forms the floor of the 
Philpott coal basin, which belongs to the upper coal bearing 
division of Winslow.* 
The syncline that forms this basin is the western represen- 
tative of the syncline that is seen to the south of the mono- 
clinal fold farther east. 
The Clinton monocline. The Clinton monocline is very 
similar to the Red River monocline, described above, except 
* Prelimiaary Report on Coal, Arkansas Geol. Surv. Annual Kenort 
for 1888. Vol. Ill, p. 33. 
