The 2BC or 2CB horizon has hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 2 to 8. Mottles are in the shades of brown, gray and olive. Texture is silty clay or clay. The 2C horizon has hue of 7.5YR to 2.5Y, value of 3 to 6 and chroma of 2 to 8. Mottles are in shades of brown, gray and olive.
Texture is silty clay or clay.
The 2R horizon is hard gray limestone. These are Alford , Baraboo , Bertrand , Birkbeck , Blackhammer , Cadiz , Camden , Dodge , Dubuque , Elco , Eleroy , Fayette , Flagg , Hackers , Inton , Iona , Jackson , Knowles , La Farge , Lomira , Marseilles , Martinsburg , Mayville , Menfro , Mentor , Middletown , Minnith , Palsgrove , Rozetta , Rush , Russell , Seaton , St. Charles , Sylvan , Uniontown , Weingarten , Westmore , Winfield , and Zurich series in the same soils family. Alford soils are formed in loess Baraboo, Dubuque, Knowles, La Farge, and Marseilles soils have bedrock within depths of 40 inches. Blackhammer, Cadi, Fayette, Inton, Minnith, Palsgrove, and Sylvan soils have sola less than 60 1nches thick. Bertrand, Birkbeck, Camden, Dodge, Jackson, Middletown, Rush, Russell, and St. Charles soils have more sand in the lower part of the solum.