Reaction is slightly alkaline or moderately alkaline. The 3Cg is neutral or has chroma of 10YR, or 2.5YR, value of 4 to 6, and chroma of 0 to 2. It is loam or fine sandy loam. Rock fragment content ranges from 1 to 10 percent. Clay content ranges from 10 to 20 percent.
Reaction is slightly alkaline or moderately alkaline.
Some pedons do not have a 3Cg horizon. Brookston and Cordova soils do not have stratified materials in the lower part of the series control section. The Buntingville, Forestcity, Hamel, and Nosoni soils have mollic epipedons more than 24 inches thick. Clackamas and Millgrove soils average more than 11 percent rock fragments in the lower part of the control section. The Navunon soils have limestone bedrock within the series control section.