 Hay Swamp is situated at the northern limit of the Carolinian Biotic Province and is categorized as consisting of 98% swamp and 2% marshland.Apart from the Ausable and the Black, its primary source of water is considered to be the local Wyoming Moraine aquifer.Hay Swamp is an important regional habitat for wildlife populations including white-tailed deer, great blue heron, ducks, geese, as well as a significant beaver presence.