6 
The American Geologist. 
July, 1897 
of displacement cannot be ascertained, but it is jjrobably not 
very great, the elevation of the strata forming the mountains 
to the north being due to the monoclinal fold, rather tlian to 
the displacement by faulting. 
From Hell creek the monoclinal axis continues to the south- 
west, parallel to the general course of Red river, and from one- 
half mile to one mile to the north of that stream. In 11 N., 
11 W., it passes through tlie northwest quarter of section 10, 
just north of the center of section 9, through the smith half 
of section 8, and Just north of the north half-mile corner of 
section 18. This is one- fourth of a mile north of Kinderhook 
postotlice, at which place the strata have a dip of about 15^ a 
little east of south. 
In 11 N., 12 W., the axis of the fold passes near the center 
of section 14. One hundred yards north of the center of the 
northeast quarter of the southeast quarter of this section the 
beds are faulted, the down-throw being slight, and on the 
south side. Where the public road crosses a small creek s(uith 
of the center of the southeast quarter of section 20, just south 
of Mr. Bradford's house, the flaggy sandstones at the south 
side of the monoclinal fold are seen dipping beneath the bot- 
tom land of Red river at an angle of 20^^, south 20° east. 
The dips become gentler toward the north and at the center 
of the northeast quarter of section 20 the strata are flat. 
There is no fault near the monoclinal axis at this place. The 
rocks south of the river in this region lie approximately flat 
as seen in the rocks capping Sugar Loaf mountain and in the 
sandstones east of it. 
The accompanying section (fig. 2) from the top of Sugar 
Loaf mountain running north across the monoclinal axis 
shows the relations of the sandstones capping this mountain 
to the sandstones forming the high hills to the northward. 
f-Loaf Pit. 
s ^ 
FlGUKE 2. 
The axis of the fold passes immediately north of Eglantine, 
which town is in 11 N., 12 W., at the center of section 30. 
