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Great Swamp National Wildlife Refuge

Great Swamp National Wildlife Refuge
IUCN category IV (habitat/species management area)
Great Swamp National Wildlife Refuge in New Jersey during March
Map showing the location of Great Swamp National Wildlife Refuge
Map of the United States
Location Morris County, New Jersey, United States
Nearest city New Providence, New Jersey
Area 7,800 acres (32 km2)
Established 1960
Governing body U.S. Fish and Wildlife Service
Designated May 1966

The Great Swamp National Wildlife Refuge is located in Morris County, New Jersey. Established in 1960, it is one of more than 550 refuges in the National Wildlife Refuge System.

The refuge was declared a National Natural Landmark in May 1966.[1] The eastern half of the refuge was designated as wilderness by Congress in 1968, making it the first wilderness area within the Department of the Interior.


  • Administration 1
  • History 2
    • Geologic 2.1
    • Early Settlers 2.2
    • Wildlife Refuge Formation 2.3
  • Description 3
  • Related organizations 4
  • Gallery 5
  • See also 6
  • Notes 7
  • External links 8


The refuge is managed by the federal United States Fish and Wildlife Service, an agency within the United States Department of the Interior. Refuge lands lie within the townships of Chatham, Harding, and Long Hill.



The Great Swamp is the remnant of a lake bottom of a once-mighty glacial lake called Glacial Lake Passaic that about 15,000 to 11,000 years ago extended for 30 miles (48 km) in length and was 10 miles (16 km) wide, in what is presently northern New Jersey. The lake was formed by the melting waters of the retreating Wisconsin Glacier at the end of the last Ice Age. The glacier had pushed a moraine ahead of its advance, a rubble of soil and rocks that plugged the existing outlet for the waters that drained into the area normally. As the retreating glacier melted, the waters rose to create the lake before a new outlet began to allow the water to exit at a much higher elevation, hence, the lake became established.[2]

Hydrographic image of a typical drainage basin, called a watershed in the United States

The course of the Passaic River that had drained the swamp prior to the formation of the glacial lake, became altered due to the plug of its outlet and the water released as the glacier melted filled the basin before it was able to seek a new path to vent into the sea. A range of mountains to the west of Morristown formed the western boundary of the new lake and the most easterly line of the Watchung Mountains became the eastern boundary. The tops of some of the Watchung range became islands in the great lake. Water that had vented through, or to the south of the Watchung range found a new path that altered, forever, the old drainage paths and, when the plug collapsed the river still was forced to travel north through the length of the range before finding a new outlet near present-day Paterson where it could manage the eastern turn toward the sea.

Early Settlers

The refuge includes approximately one-quarter of the 55-square-mile (140 km2) watershed comprising the Great Swamp that is the source of the Passaic River and the watershed's boundaries touch ten different communities, many of which were settled by European colonists long before the American Revolution. Dutch colonists preceded the British, who displaced the native tribes that hunted, fished, and farmed in the area for ten thousand years. The Amerindians had arrived in the area and established settlements shortly after the retreat of the glacier. When European explorers discovered the bounty of their hunting, trade became an established interaction with the natives in what the Dutch claimed as part of New Netherlands in 1614 for almost three quarters of a century prior to the pressure for European settlements that ensued after the British established dominion over what they called the Province of New Jersey.

Wildlife Refuge Formation

The land that would become the Great Swamp National Wildlife Refuge was established by an Act of Congress on November 3, 1960, after a year-long legal battle that pitted local residents against Port Authority of New York and New Jersey officials wishing to turn the Great Swamp into a major regional airport to supplement Newark Airport's ability to accommodate large jet aircraft.

The Jersey Jetport Site Association was the first to form in opposition. Their efforts to prevent the development of an airport in the swamp became public knowledge on December 3, 1959 when four of its members (

  • U.S. Fish and Wildlife Service: Great Swamp National Wildlife Refuge
  • Friends of the Great Swamp
  • Great Swamp Watershed Association
  • New Jersey's Great Northwest Skylands: The Great Swamp
  • Ten Towns Great Swamp Watershed Management Committee
  • Great Swamp National Wildlife Refuge Trail Details and Info

External links

 This article incorporates public domain material from websites or documents of the United States Fish and Wildlife Service.

  1. ^ "National Natural Landmarks in New Jersey".  
  2. ^
  3. ^ Dean, Clarence (January 14, 1960). "Plan for Airport Argued inNew Jersey". New York Times. Retrieved June 5, 2013. 
  4. ^ Hamilton, Leonard W., Ph.D., Keynote Address to the Tenth Anniversary Celebration, Ten Towns Committee, Sustainable Stewardship, June 24, 2005
  5. ^
  6. ^ Olson, D. M, E. Dinerstein; et al. (2001). "Terrestrial Ecoregions of the World: A New Map of Life on Earth".  
  7. ^
  8. ^


See also


Numerous nonprofit organizations have arisen from the communities within the Great Swamp watershed and work closely in partnership with the refuge. The Great Swamp Watershed Association, founded in 1981, works to protect the entire 55-square-mile (140 km2) watershed that surrounds the swamp.[8] Within the Great Swamp there also is a nonprofit bird-rehabilitation center founded in 1977, called The Raptor Trust, mainly specializing in birds of prey, such as eagles, hawks, and owls. Lord Stirling Park is part of the Somerset County Park System. The park is entered from the community of Stirling that is named after a military officer of the American Revolution who lived in the community, William Alexander. The park is located immediately adjacent to the southwestern boundary of the refuge on the west side of the Passaic River. The park offers excellent hiking facilities that include trails, boardwalks, observation blinds, and naturalist exhibits displayed in its park office that are related to the swamp and its wildlife.

Related organizations

Many species of birds reside permanently in the watershed. Deer, fish, fox, frogs, muskrat, raccoons, snakes, turtles, as well as many insects and a wide variety of wildflowers and plants call the refuge "home". Some of the animals hunted by the prehistoric native inhabitants and colonists, such as bear and beaver, are encountered occasionally. Its role in draining the region and absorbing flood water for gradual release can be critical during extreme weather conditions. The refuge also plays an important role in improving water quality by acting as a natural ecological filter trapping sediments and contaminants.

The Great Swamp is a migration-resting and feeding area or permanent habitat for more than 244 species of birds. The major routes of birds migrating along the eastern portion of the United States follow the corridor that includes the Great Swamp as an important stopping place for rest and nutrition.

By the end of 2010, the extent of the Great Swamp National Wildlife Refuge had grown to nearly 7,800 acres (32 km2) or more than 12 square miles (31 km2) of varied habitats. It lies within the Northeastern coastal forests ecoregion.[6] When the remainder of the area donated was dedicated on September 9, 1968, it was the first refuge to receive wilderness designation.[7]

Map of the Great Swamp National Wildlife Refuge


), which assured its protection as a refuge and the acquisition of additional lands continued. 2, he oversaw its dedication as a refuge. The initial donation was 2,600 acres (11 kmSecretary of the Interior championed the efforts of these residents, whom he described as having mounted the greatest effort ever made by residents in America to protect a natural habitat, and later, on May 29, 1964 as the Stewart Udall, Arizona from representative As the [5]

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