198 THE CLAYS OF ARKANSAS. 
The second locality from which clay is obtained is at the pottery. 
This is a dark-blue stratified clay containing more or less sand. An 
equal amount of clay from the two localities is used in making the 
ware. 
Benton Brick Manufacturing Gompany. — Bricks are made by the 
Benton Brick Manufacturing Company from a surficial deposit that 
lies above the Lafayette gravel beds. It is a very sandy brick clay 
composed of about one-third clay and two-thirds sand. The clay is 
hauled from the pit to the pug mill in wheelbarrows. The pug mill 
is run by horse power. The bricks are molded in a hand mold and 
taken to a shed, where they are dried in air without artificial heat. 
When the bricks are sufficiently dried they are wheeled to a rotary 
up-draft kiln and burned. The plant employs eight men and has a 
capacity of 5,000 bricks a day. Five days and nights are required to 
burn the brick and 20 cords of wood are used to the kiln — 10 cords 
of pine and 10 of oak. The clay makes bricks of poor quality. 
SCOTT COUNTY. 
GENERAL GEOLOGY. 
The geology of Scott County is like the geology of those parts of 
Sebastian County that lie below the coal. The coal-bearing beds 
enter Scott County only through the parts occupied by the Poteau 
Mountains. So far as the clays alone are concerned, however, the co"al 
is of but little importance, for there is an abundance of excellent 
clay shale in the rocks below the coal. 
The rocks of Scott County are all more or less folded, and the denuda- 
tion that has removed much of them has left the usual ridges of sand- 
stone dominating the valleys cut in the shales. 
In the northern part of the county there are long, winding sandstone 
ridges with shale valleys parallel to them. Coops Prairie, already 
mentioned under Sebastian County, is half in Scott County, Coops 
Ridge swinging around the east end of it. Bluff Ridge, starting a 
mile south of the eastern end of Coops Ridge, runs a little north of 
east for 4 miles, to the toll bridge, then turns northward for 2 miles, 
and then swings eastward, crosses Washburn Creek one-half mile 
above the point where that stream enters Petit Jean Creek, and thence 
continues eastward and southward until it goes nearly around Jen- 
nings Hill. Between Jennings Hill and Bluff Ridge there is another 
ridge of sandstone that completely encircles Jennings Hill, though 
it is twice cut by Petit Jean Creek. 
These ridges of sandstone are mentioned only for the purpose of 
directing attention to the shale beds that accompany them, for the 
valleys between are made up for the most part of shales which are here 
argillaceous and there sandy. Washburn Creek, just north of Pine 
Log Ridge, in the extreme northern end of Scott County, flows along 
