The Terouge series consists of very deep, poorly drained, very slowly permeable soils that formed in calcareous, clayey alluvium. These soils are on level to nearly level flood plains and low terraces of streams that drain Blackland uplands, MLRA 135. Slopes range from 0 to 3 percent. Terouge silty clay from a micro low on a smooth plane of less than 1 percent slope in a cultivated field.
Reaction is slightly alkaline or moderately alkaline throughout.
The soil is calcareous throughout. The texture is silty clay or clay throughout. Carbonate concretions range from few to many. The active slickenside zone extends to 60 inches or more. Most slickensides are oriented at angles of 35 to 50 degrees.