134 University of Kansas Geological Survey. 
The above section, provided the thickness of the lower part is 
correct, gives 131 feet for the Kiowa shales, the greatest thickness 
noted in the Belvidere region. On the hill south of Belvidere and 
about three miles northeast of this locality the Kiowa shales are 
shown to have a thickness of at least 123 feet, the top not being 
defined by a succeeding formation. In the Blue Cut section of 
Professor Hill, the thickness of the Kiowa shales is given as 102 
feet; but it is thought that the lower part of the shales is thicker 
than is indicated on his section! In Professor Cragin’s section the 
thickness of the Kiowa shales is given as ranging from 110 to 130 
feet.2. The Dakota sandstone (?) on top of Blue Cut mound is very 
similar to the outiier seen on top of the butte south of the Medicine 
Lodge river. Above the highest thin limestone stratum containing 
large shells are apparently thin shales, then a layer of somewhat 
iron-colored rock varying from dark red to brownish red. Loose 
on this part of the hill, but disposed as though coming from a 
ledge in the vicinity, are large boulders of coarse-grained brownish 
sandstone. On the summit of the mound are similar boulders 
mixed with some of the Tertiary marl. Part of the sandstone 
boulders are covered by a white incrustation possibly from having 
been imbedded in the Tertiary and possibly merely a deposit from 
the Tertiary. 
From Blue Cut Mound the Kiowa shales were traced up Otter 
creek to the base of the Tertiary. ‘To the east is a high ridge covered 
entirely by Tertiary rocks, forming the divide between Otter and 
Walker creeks. Near the head of Walker creek are sandy Tertiary 
maris below which are yellowish shales of the upper Kiowa that 
contain fragments of Gryphaea shells, apparently near the dividing 
line between Kiowa and Tertiary. In another of the head branches 
of Walker creek the yellowish and pinkish shales are well shown 
near its head, while farther down, black shales of the lower part of 
tie Kiowa are exposed. On the southwest branch of Walker creek 
Tertiary sandstone and marl are exposed near the head of the 
branch; just below are pink shalv limestones containing Ostrea 
aud belonging in the uppper part of the Kiowa. Down the creek 
i) Montel, Te), ZAl, 
; 2 EF. W. Cragin, Bulletin Washburn College Laboratory Natural History, Vol. 
My TOD, 7B, 
