Slopes range from 0 to 6 percent. Mean annual temperature is 50 degrees F., and mean annual precipitation is 36 inches. Lauramie silt loam - on a 1 percent slope in a cultivated field. The depth to the base of the argillic horizon is 40 to 70 inches. They are dry in some parts of the SMCS for less than 60 days during the 120 days following the summer solstice.
Reaction is moderately acid to neutral, depending upon the liming history.
Clay content is 15 to 32 percent. Reaction is strongly acid to slightly acid. Clay content is 20 to 32 percent. Rock fragments range from a few pebbles to 14 percent. Reaction is strongly acid to slightly acid.