Strata of coarser textures are sometimes present. Commonly a darker colored, clay enriched subhorizon is present. Rock fragment content ranges from 0 to 20 percent. This is the Reading series. Reading soils are less than 5 feet to the base of soil development.
Troxel soils are in depressions on outwash plains, stream terraces, and glacial till plains.
The Troxel soils formed in 3 to 5 feet of silty material and in the underlying loamy drift. These are Plano , Elburn , Warsaw , Lorenzo , Wea , Ringwood , and Griswold soils that are on nearby level to sloping areas on the landform. These soils have mollic epipedons that are less than 20 inches thick. Surface runoff is slow or ponded. Permeability is moderate.