These moraines have been reworked by water. Beach ridges and small sand dunes are common on the sand channels. The clay plain is generally broad and flat. Wet loamy and clayey soils are prevalent. Soil permeability is generally low, and these soils require drainage for agricultural use.
Soils are calcareous at shallow depth.
Soils in the sand channels are poorly or very poorly drained in depressions and excessively drained on dunes. Sandy soils in lower slope positions are often calcareous, while those on dune ridges are acidic. Sand soils are prone to wind erosion when cultivated. No natural lakes in the sub-subsection. Major rivers include the Huron, Rouge, Raisin, Clinton, Detroit, and St. Clair.