the c horizon has hue of 10yr, 2.5y, or 5y, value of 5 to 7 and 4 to 6, and chroma of 2 to 4. it is loam or clay loam and is slightly or moderately alkaline. it has few to many mottles inherent to the parent till. it has few or common accumulations of gypsum between depths of 40 and 60 inches in most pedons.