Red River and Clinton Monoclines. — JSFeiosoin- Branner. 7 
The sandstone beds in this locality dip beneath Red river, and 
beneath the high sandstone capped escarpment that is imme- 
diately south of it. 
In 11 N., 13 W., the fold passes through the south half of 
25, the north half of 35, and through the center of section 34. 
In sections 25 and 35 the beds at some places have a south- 
ward dip of 40-75 degrees, and show strong evdences of a 
fault. 
Red river coming from the north cuts through the fold in 
the south half of section 34. The dips southwest of this point 
are not as steep as in the vicinity of Eglantine, ranging only 
from 4 to 18 degrees south, Choctaw creek runs parallel to 
the fold and eitlier entirely at the south side of it or cutting 
through tlie tilted strata. In the vicinity of Choctaw post- 
office while the strata do not dip so sharply to the south, the 
monocline is broader. All the strata in the hills to the north 
of Choctaw creek pass beneath those that form the high es- 
carpment south of that creek. This escarpuuMit is but a con- 
tinuation of that seen south of Red river and farther east. The 
fold passes through 10 N., 14 W., from section 1 to section 
li), with dips of 10-15 degrees sf)uth 15-20 degrees east- 
From the northeast corner of 10 N.. 14 W., the fold extends 
in an almost direct line to the northwest quarter of section 
21, 9 N., 16 W. The strata dipping from 10 to 20 degrees, 
south 10 to 20 degrees east, and passing beneath the beds of 
the escarpment to the south, this escarpment is the western 
extension, more or less prominent, of the high escarpment 
south of Red river in the vicinity of Eglantine. 
In 9 N., 16 W., sections 14, 15, 21, 20 and 19, the fold is by 
no means well marked, the strata having dips not steeper 
than 5-10 degrees. In sections 21 and 20 the beds instead of 
having a slightly southeast dip have a due south dip, the 
strike being east and west. One mile south of Cleveland, in 
section 20, the center of the southeast quacter, the beds have 
a dip of 8 degrees south. 
Just north of the center of section 20, the monoclinal axis 
reaches its southernmost point, turning from this place gently- 
towards the northwest. In 9 N,, 17 W., section 15, near the 
southeast corner, the strata are very much disturbed and have 
the appearance of being faulted, with the line of slip at right 
