The Saybrook series consists of very deep, moderately well drained soils formed in loess or other silty material and in the underlying loamy calcareous till on till plains.
Permeability is moderate in the solum and moderately slow in the substratum.
Slope gradients range from 0 to 20 percent. 41 degrees 24 minutes 08 seconds N., and long. The depth to the base of the argillic horizon ranges from 24 to 40 inches. The thickness of the mollic epipedon ranges from 10 to 20 inches. The depth to till ranges from 20 to 40 inches.