Cumulic Humic Regosol (CU.HR)
Common horizon sequence: Ah, C, Ahb, C
These soils have the properties specified for the Regosolic order and the Humic Regosol great group. They differ from Orthic Humic Regosols by having layers below the Ah or Ap horizon that vary in color value by one or more units, or organic matter contents that vary irregularly with depth. They do not have faint to distinct mottles that indicate gleying within 50 cm of the mineral surface. Commonly these soils result from either mass wasting of soil downslope or intermittent flooding and deposition of material.
Note: Diagnostic horizons are underlined.