20 
SOIL SURVEY OF OUTAGAMIE COUNTY. 
at a much higher level than at the present time. After this 
first deposition it was modified to some extent by glacial action. 
Native vegetation. —The original timber growth consisted 
chiefly of maple, birch, elm, some beech, and pine. Practically 
all of the merchantable timber has been removed. Most of this 
soil has been cleared, and is now in highly improved farms. 
About the only exception to this is in the extreme northeast 
corner of the county in T 24 N, R 19 E where the land was until 
very recently a part of the Indian Reservation. 
Present agricultural development* —The chief crops grown 
consist of hay, small grains, corn, and root crops. It is natur¬ 
ally a strong productive soil; when drainage is provided, very 
good yields are secured. On practically all of the farms made 
up of this soil, there is some land which is too wet for the grow¬ 
ing of cultivated crops without supplying some form of drain¬ 
age. When thoroughly drained, this soil will rank along with 
the best in the county. It is somewhat more difficult to culti¬ 
vate than soils of lighter texture, but if plowed when moisture 
conditions are favorable, a good seed bed can be secured with 
but little difficulty. 
SUPERIOR SILT LOAM. 
ROLLING PHASE. 
Extent and distribution. —This soil covers a total area of ap¬ 
proximately one township, and is the predominating type in the 
town of Greenville. It is also quite extensive in the town of 
Grand Chute, and there are numerous small tracts in the south¬ 
east part of the county. 
Description. —The surface soil to a depth of about eight 
inches consists of a brown to dark brown rather compact silt 
loam containing a moderate amount of organic matter. It is 
practically free from gravel and stones are seldom found upon 
it. The subsoil into which the surface material grades quite 
abruptly consists of the heavy red clay which is characteristic 
of this series. 
Topography and drainage. —The surface of this soil varies 
from undulating to gently rolling, and in some instances it could 
be classed as rolling. On account of the surface features the 
•For chemical composition and improvement of this soil, see page 23. 
