They are nearly level and gently sloping soils on outwash plains and terraces, typically in slight depressions and broad drainageways. Slope ranges from 0 to 3 percent.
Permeability is moderate in the surface layer and subsoil and rapid or very rapid in the substratum.
Mean annual temperature is about 50 degrees F. and mean annual precipitation is about 47 inches. Tisbury silt loam - cultivated. USGS Uncasville topographic quadrangle, latitude 41 degrees 26 minutes 15 seconds N., longitude 72 degrees 00 minutes 6 seconds W., NAD 27. Thickness of the solum ranges from 17 to 40 inches and typically corresponds to the depth to sand and gravel. Rock fragments range from 0 to 5 percent in the solum and from 0 to 70 percent in the substratum.