Swampy land is a type of wetland characterized by its soggy, muddy terrain. It is often composed of marshes, fens, mires, and morasses. Marshes are wetlands that are flooded with water and contain grasses, reeds, and other aquatic plants. Fens are wetlands that are fed by groundwater and have a high mineral content. Mires are wetlands that are saturated with water and have a thick layer of peat. Morasses are wetlands that are filled with mud and are often found in low-lying areas.