Lorenzo soils formed in 12 to 24 inches of loamy outwash underlain by calcareous sand and gravel. These are the somewhat excessively drained Casco soils, the excessively drained Rodman soils, and Warsaw soils. These soils are on similar landforms. In addition, Rodman soils do not have an argillic horizon, and Warsaw soils are moderately deep to sand and gravel. The potential for surface runoff ranges from low to high.
Permeability is moderate in the solum and very rapid in the underlying material.
The less sloping areas are cultivated. The more sloping are mainly used for pasture. Native vegetation was tall prairie grasses, chiefly bluestem. Will County, Illinois, 1951.