This is a cyclic soil and undisturbed areas have gilgai microrelief with microknolls 3 to 5 inches higher than microdepressions. Distance between the center of the microknoll and the center of the microdepression is about 5 to 15 feet. The microknoll makes up about 20 percent, the intermediate, or area between the knoll and depression, about 40 percent, and the microdepression about 40 percent. Cracks open and close each year except during higher than normal rainfall years, and remain open for 90 or more cumulative days during most years. When dry, 0.4 to 2 inch wide cracks extend from the surface to a depth of 40 inches or more.
Cracks are more prominent in the microdepressions.
COLE greater than 0.07. The range in characteristics represents 50 percent or more of each pedon unless otherwise stated. After periods of prolonged saturation pedons become gleyed and have neutral colors with moist color value of 4 to 6. After periods of prolonged saturation pedons become gleyed and have neutral colors with moist color value of 4 to 6. These are the Ranco , Rosston , and Ustibuck series.