Charlton soils have rock fragments dominated by granite, gneiss, and schist. Riverhead soils formed in sandy outwash. Maymead soils formed in colluvium and have bedrock at a depth of 40 to 60 inches. Newport soils have dense till substrata. Soco and Stecoah soils have Cr horizons and have rock fragments dominated by medisedimentary rock including phylitte, slate and metasedimentary sandstone.
Valois soils are typically on complex slopes characteristic of end or lateral moraines.
Some landforms are congeliturbate covered or till covered valley terraces. Slopes range from 0 to 60 percent. They formed in glacial till dominated by material from sandstone and siltstone or shale with some slate or phyllite and typically have a small component of material from calcareous rocks. The till commonly is calcareous at depths greater than 12 feet. Fluvial sorting in the substratum commonly results in weak stratification.