The Raub series consists of very deep, somewhat poorly drained soils formed in loess or other silty material, and in the underlying calcareous loamy till.
Permeability is moderately slow.
These soils are on till plains and slope ranges from 0 to 2 percent. Mean annual temperature is 50 degrees F. and mean annual precipitation is 37 inches. Raub silt loam on a 1 percent convex slope in a cultivated field at an elevation of 800 feet. 40 degrees 11 minutes 50.3 seconds N. and long. The depth to the base of the argillic horizon ranges from 40 to 70 inches.