Prosspr.|  Cretaceous.—Comanche Series of Kansas. 139 
of the Cheyenne seen on upper Mule creek, the higher country to the 
north, west and south being composed entirely of Tertiary grit and 
marl. 
South of Mule creek and the John Pyle farm is a fairly steep 
bluff composed for the greater part of white sand and marls belong- 
ing to the Tertiary. At an elevation of 70 feet above creek level 
covered by soil is a prominent stratum of white sand above the 
coarser grit. Some five miles to the southeast of the above men- 
tioned locality is the head of a small southern branch of Mule creek 
known as Horse gulch. 
Section south of Horse Gulch. 
No. Feet. 
x) 
5, At top of prairie fine sand and grit changing at 
bottom to sandy marl. Tertiary. 
Do OAT | SIG) OSS sii Shot Oi Wiel ci aha aia eieidl a lS Ble naSle enMn Siecle 20—250 
4a. Mellowish soft friable sandstones) 323000. Jf). 2230 
3. At top yellowish shales; greater part of thickness 37—22 
blackish shales with red streaks giving them a 
somewhat mottled appearance. Perhaps this 
thickness is too great as their measurement is 
somewhat difficult. 
2. Light gray to whitish sandstone some of it thor- 29—191. 
oughly indurated. 
1. Red sandstone and shales partly exposed along the 162—162 
lower part of bluff and Horse gulch to level of 
Mule creek. 
The interesting part of the above section is a zone of blackish: 
shale containing red streaks having a thickness of 37 feet in which 
somewhat careful search was made and particularly in the yellowish 
shales at its top for fossils. None, however, were found, and there 
seems no evidence, except color, for referring this zone to the Kiowa 
shales. Apparently the blackish shales, 9 feet in thickness one 
mile west of Jacob Keel’s on the northern side of Mule creek, repre- 
sent the same zone. Much thinner similar blackish shales with red 
streaks, overlying massive Cheyenne sandstone were first noticed in 
the southeast draw of Elk creek, in the western part of Barber county. 
It is probable that following around the high divide to the north of 
