Undisturbed areas have gilgai microrelief with microknolls 3 to 10 inches higher than the microdepressions. Distance from the center of the microknoll to the center of the microdepression ranges from 10 to 24 feet. The A horizon has hue of 10YR, value of 2 to 3, and chroma of 1. Thickness ranges from 10 inches on knolls to 28 inches in depressions, but is between 12 and 20 inches thick in more than half of each pedon. Reaction ranges from slightly acid to slightly alkaline.
Texture is clay or silty clay.
The Bss horizon has hue of 10YR, value of 3 to 4, and chroma of 1. Masses of redox concentrations in shades of brown range from none to common. Cracks extending into this horizon are commonly filled with black or very dark gray soil from the surface layer. Reaction ranges from moderately acid to slightly alkaline. The Bssg horizon has hue of 10YR, value of 5 or 6, and chroma of 1 or 2.