Environmental Description:  This upland depression swamp forest of the Piedmont and inner Coastal Plain is found in small depressional features with hydrologic regimes controlled by fluctuating groundwater or seasonal pooling of rainwater over impermeable substrates. Sites are usually located on areas underlain by fine-grained mafic rocks, slate, or metasiltstone, and typically have dense clay subsoils that impede drainage. They are typically flooded to a depth up to about 50 cm during the winter and early part of the growing season but draw down by late summer. Below the surficial organic matter, soils are usually gleyed or mottled and have a sticky consistency. Although the parent material is often basic, the soils of these swamps are largely leached of bases and are extremely acidic with moderately low cation levels and base saturation. Occurrences on mafic and acidic substrates appear to be indistinguishable. These are important amphibian breeding areas, but they depend on having intact upland areas as habitat for the adults.