Sarpy soils are on nearly level to rolling flood plains.
Slopes range from 0 to 9 percent. Sarpy fine sand, on a 3 percent slope in a soybean field at an elevation of 700 feet. 39 degrees 12 minutes 6 seconds N. and long. Thin overwash of finer materials, such as silt loam or silty clay, are recognized. Some pedons below 40 inches in depth are silt loam.