Prosser.|  Cretaceous.—Comanche Series of Kansas. 159 
the Kiowa shales in this vicinity is a yellowish sandy layer from 
3 to 4 feet in thickness. Above are black shales which are well ex- 
posed for some distance. Higher the upper part of the Kiowa is 
largely covered so that its top was not determined with accuracy. 
Apparently the Kiowa shales have a thickness of at least 60 feet in 
the northern slope of Mt. Jesus. The Tertiary above dips toward the 
northeast and rests upon the top of the Kiowa at a lower elevation 
than at the almost vertical exposure in the south side of the moun- 
tain. I am inclined to think that the superjacent Tertiary on the 
northern slope of the mountain has fallen to some extent on account 
of the later erosion of the Kiowa shales and so conceals the upper 
portion of the latter formation. On the south side of the mountain 
is an excellent exposure of the Tertiary and the Kiowa shales reach- 
ing to the upper part of the Red-Beds. 
Section on South Side of Mt. Jesus. 
(U. S. Signal Station 2300 A. T.) 
No Feet. 
4 
. Upper part of cap composed of Tertiary marls; 80—173 
lower portion Tertiary sands and grit—total 80 
ees Merrie 
ce) 
. Yellowish and pinkish shales changing to blackish 85— 95 
Shales in the lower part. Kiowa. 
bo 
Red shales belonging to the Hackberry shales of ,8— 8 
Cragin—8& feet. 
1. Day Creek dolomite. 
The top of Mt. Jesus is eight miles northeast of Ashland. The 
Iowa shales follow the ridge forming the divide between Bluff creek 
on the north and the tributaries of the Cimarron on the south 
tv a point four miles southeast of Mt. Jesus when the outcrop turns 
aud extends in an irregular line westerly, forming the southern 
slope of the mountain with its top 80 feet below the summit. Mt. 
Jesus is a conspicuous land mark in the eastern central part of 
Clark county. From its summit may be seen to the south the great 
valley of the Cimarron, the river itself being fourteen miles south. 
The ridges and lower bluffs along the sides of the creeks of this 
valley are composed of the rocks of the Cimarron series or Red-Beds 
as may be seen for a long distance from Mt. Jesus. Along the im- 
