GROUP OF LOAMS AND FINE SANDY LOAMS. 
39 
heavier soils of this series. Alfalfa is grown in some localities 
with good success. 
SUPERIOR FINE SANDY LOAM, ROLLING PHASE 
Extent and distribution. —This soil is confined almost entirely 
to the eastern half of the county where it occurs in numerous 
tracts of from less than one mile to 3 to 5 square miles in ex¬ 
tent. Its continuity is broken by other soils of this series and 
also by tracts of peat and soils of the Antigo series. 
Description .—The surface soil of this phase to a depth of 
about 10 inches consists of a grayish-brown fine sandy loam. 
In a few places the material approaches a fine sand in texture. 
The lower portion of the soil section becomes somewhat lighter 
in color, due to the smaller amount of organic matter present. 
The subsoil usually begins quite abruptly and consists of a pink¬ 
ish-red compact clay or clay loam. This usually extends to a 
depth much greater than 3 feet, though in the lower portion of 
-the 3 foot section it is quite common to find thin layers of fine 
sand. The color of the clay is often lighter at this depth. A 
small amount of gravel sometimes occurs upon the surface and 
small rock fragments may be found through the soil section. 
Granitic bowlders are also quite plentiful upon the surface, and 
in places are sufficiently numerous to interfere with cultural 
operations. In many fields these have been removed and placed 
in piles along the fence rows. Much of the type is practically 
stone free. The depth to clay is variable but seldom exceeds 
two feet. 
Topography and drainage. —The surface of this soil ranges 
from gently sloping to gently rolling and in some cases rolling. 
Because of the uneven surface features the natural drainage is 
well established. In no place is the type too broken to permit 
the growth of cultivated crops. Erosion is not a serious prob¬ 
lem, though on the. more rolling areas there is some danger of 
washing when the fields are bare, especially during the heavy 
rains of spring, when the ground is saturated with water. 
Origin .—In origin the subsoil has the same source as other 
Superior soils, having been first laid down as a lacustrine de¬ 
posit probably during interglacial times and later influenced to 
a greater or less extent by glacial action. The surface sandy 
* For chemical composition and improvement of this soil see page 43. 
