Great Swamp National Wildlife Refuge

The Great Swamp National Wildlife Refuge is located in Morris County, New Jersey, United States. Established in 1960, it is among what has grown to be 806 refuges in the United States National Wilderness Preservation System. The first part of what was known in New Jersey as "The Great Swamp" that had been assembled in 1959 and was donated for perpetual preservation by the park service of the federal government in 1960, was declared a National Natural Landmark in May 1966. More land has been added several times. Its eastern half 3,660 acres (14.8 km2) was designated as a wilderness area by Congress in 1968, making it the first wilderness area within the Fish and Wildlife Service. By 2010, the refuge included more than twelve square miles (7,800 acres or 32 square kilometers).