TET SIN BOR VGSLLAILE OF, OFTO, 279 
One of the most interesting sections of the Devonian and 
Subcarboniferous formations of southern Ohio is that of Benner’s 
Hill, about two miles northwest of Bainbridge, in the southwest- 
ern part of Ross county. The section begins on the eastern 
bank of Buckskin Creek, a short distance below the railroad 
bridge and house of Mr. George Walley, and follows the steep 
part of the hill to the bare spot of shale known as Bald Knob, 
and then runs through the woods to the Walley sandstone quarry 
and top of the hill. 
BENNER’S HILL SECTION. 
Total 
Thickness _ thickness 
No. feet. feet, 
7. Covered to the highway directly east of the quarry, which 
crosses about the highest part of that portion of the hill. Loose 
by the roadside is brownish-red shale, which is apparently from 
near that horizon. The greater part of this covered slope 
belongs in the Cuyahoga shale - - - - - - 36 490 
6. Black fissile bituminous shale vertical wall of 9 feet on top 
of the quarry sandstone. Sunbury shale, formerly known as the 
Waverly black slate. The contact between the black shale 
and the subjacent Berea sandstone is beautifully shown on the 
vertical wall of the George Walley quarry. The contact is 
sharp and it makes a conspicuous line - - - - > 6) 454 
5. The upper 7 feet is a massive sandstone layer, which in places 
does not split into layers. The upper 18 feet of the formation 
is composed of very massive light gray, generally rather coarse- 
grained sandstone, with few bedding planes. Below is 13 feet 
composed of sandstones, the layers of which vary in thickness 
from I to 2% feet, and alternate with shales. The color varies 
from bluish to buff and numerous layers of the sandstones in the 
lower part of the quarry show excellent examples of ripple 
marks. At the base, sandstones 6 inches or more in thickness 
alternate with shales; but this portion is partly covered, and a 
clear line of contact between the sandstones and the under- 
lying Bedford shale is not shown. These sandstones represent 
the Berea grit, and were formerly called the Waverly quarry 
system - 5 z 5 5 ; z F > F Swine) 445 
4. The interval of the Bedford shale is mostly covered ; but at the 
base, near the line of springs, are brownish to buff arenaceous 
shales. The barometer gave 63 feet for the interval, which is 
perhaps greater than the actual thickness, since Dr. Orton gave 
it as 50 feet.t This formation was formerly known as the 
Waverly shales - - - - - - - - = 63 412 
* Geol. Surv. Ohio, Vol. II, p. 645. 
