34 
SOIL SURVEY OF BUFFALO COUNTY . 
CHAPTER IV. 
LIGHT COLORED TINE SANDY LOAM SOILS. 
BOONE FINE SANDY LOAM. 
Description .—The surface soil of the Boone fine sandy loam to 
an average depth of 8 to 10 inches consists of a grayish-brown 
fine sandy loam, which in some places contains a considerable 
amount of medium sand. The amount of organic matter present 
is not large, but a slightly acid condition is found to exist over 
most of the type. The subsoil consists of a brown to yellowish- 
brown fine to medium sandy loam, which usually extends to a 
depth of over 3 feet. 
Both soil and subsoil of this type are subject to considerable 
variation, though none of the variations are found of sufficient 
extent or importance to be mapped separately, except the more 
rolling tracts, which are usually shallow. This variation has 
been termed the rolling phase and shown separately on the soil 
map. In smaller sandy areas in the valleys of Bygolly and Little 
Bear Creeks the subsoil is a brown sandy loam, becoming lighter 
m color with depth and containing a few small bits of sandstone. 
Bordering Buffalo River in T. 24, R. 11, in the northern part of 
the county the soil is slightly finer and heavier than usual, vary¬ 
ing from a fine sandy loam to a loam, and often grading into a 
compact sandy clay loam layer at 18 to 24 inches. This heavy 
material is again underlain by a yellow sand at 24 to 40 inches. 
The differences in texture are due in part to the presence of a 
shaly sandstone layer under the soil in places and also to the 
proximity of heavier and higher lying soils from which finer par¬ 
ticles are often washed. Outcrops of sandstone are not uncom¬ 
mon, though they are not extensive and seldom interfere to any 
marked extent with cultivation. The depth to the underlying 
rock is variable, and while it averages considerably over 3 feet, 
there are places on the tops of ridges and on knolls where there 
may be as little as 2 or 3 inches of soil. There are also places 
