FARM MANAGEMENT PRACTICE OF CHESTEK COUNTY, PA. 7 



township at the south edge of the area and along the Brandywine 

 River at the northeastern edge. In these two localities the elevation 

 is less than 200 feet above sea level. The highest portion is in the 

 northwestern quarter where the land rises somewhat more than 000 

 feet above sea level. The greatest difference in elevation to be found 

 in the area is thus somewhat over 400 feet. When it is remembered 

 that in some good agricultural regions differences as great as this 

 are found on a single 200-acre farm it will be seen that the topog- 

 raphy here is not at all rough and broken. The uplands are rolling, 



Fig. 3. — Topography of area surveyed. 



resembling somewhat the surface of the bluegrass area of Kentucky, 

 though the unevenness of the surface is more marked and is cut by 

 many streams, frequently with steep, wooded slopes. (See frontis- 

 piece.) In the western portion of the area the land is in some cases 

 steep enough to cause more or less washing, especially where fall- 

 plowed land is left bare during the winter. In general, however, the 

 topography is rolling, the natural drainage being excellent except 

 along the stream bottoms, which are generally in permanent grass. 

 (See PI. II.) It is seldom necessary to resort to artificial drainage 

 on the farms in this area. Never-failing springs are found on nearly 

 every farm, and the w T ell-kept pastures are thus abundantly supplied 

 with water. Some of the streams are utilized for power by means of 



