The Alder swamp is a common shrub-dominated wetland found in every town in the Upper Valley region. Alder swamps often occur alongside lakes, ponds, rivers, and streams. Because they are often flooded, and their soils are saturated with water, these swamps favor plant species that can tolerate submerged roots, like speckled alder, a variety of willows, and red-osier dogwood. These swamps are important habitats for a variety of insects, birds, mammals, reptiles, and amphibians The Chaffee Wildlife Sanctuary, named for the 1st director of the Montshire Museum, is managed by the Lyme Conservation Commission to protect wildlife habitat and native riparian vegetation, particularly for birds; guard water quality in the brooks and pond, and provide low-impact public recreational access to wetlands and trails.