February 5, 2026
Swamp

Where Is The Great Dismal Swamp

The Great Dismal Swamp is a vast and mysterious wetland that stretches across the southeastern United States. Known for its dense forests, blackwater channels, and rich biodiversity, this swamp is both historically and ecologically significant. To understand where the Great Dismal Swamp is located, one must explore its presence on the map, its relationship to neighboring regions, and the unique terrain that defines its boundaries. The swamp spans state lines, covering parts of Virginia and North Carolina, and is one of the last remaining wilderness areas on the East Coast of the United States.

Geographic Location of the Great Dismal Swamp

Position on the Map

The Great Dismal Swamp is located in the southeastern corner of the Commonwealth of Virginia and extends into northeastern North Carolina. On a map, it lies near the Atlantic Coastal Plain, east of the city of Suffolk, Virginia, and west of the cities of Chesapeake and Virginia Beach. The swamp’s southern extension reaches into Camden, Gates, and Pasquotank Counties in North Carolina.

Coordinates and Size

The approximate geographic coordinates for the center of the Great Dismal Swamp are 36.6° N latitude and 76.5° W longitude. The swamp originally covered over one million acres, but today, due to centuries of drainage and logging, the protected area managed mainly as the Great Dismal Swamp National Wildlife Refuge covers about 112,000 acres. The refuge itself straddles the Virginia-North Carolina state line and is a major feature when locating the swamp on a modern map.

Nearby Cities and Landmarks

Virginia Side

In Virginia, the swamp is closely associated with the city of Suffolk, which lies to its northwest. Chesapeake is to the northeast, and both cities provide access points to the swamp through road networks such as U.S. Route 17 and State Route 32. The Dismal Swamp Canal, a historic waterway bordering the swamp, also runs parallel to U.S. Route 17, creating a navigational corridor that connects the Albemarle Sound in North Carolina to the Chesapeake Bay in Virginia.

North Carolina Side

From North Carolina, the swamp is accessible through towns like South Mills, Sunbury, and Corapeake. The southern portion of the swamp blends into agricultural and forested lands but still retains its wetland identity, making it a prominent feature on regional and environmental maps. The state line itself does not divide the swamp naturally; rather, the ecosystem flows continuously across both states.

Natural Features of the Great Dismal Swamp

Lake Drummond

One of the most recognizable features within the Great Dismal Swamp is Lake Drummond, a 3,100-acre natural freshwater lake located in the heart of the swamp. On most maps, this circular lake stands out as a central feature within the refuge. It is one of only two natural lakes in Virginia and provides a vital water source for the surrounding swamp ecosystem.

Forests and Wetlands

The swamp contains thick forests of bald cypress, tupelo gum, and red maple. Vast tracts of peat soil, standing water, and slow-moving creeks dominate the landscape. While the original swamp was even larger, today’s remaining area is still large enough to be clearly visible on satellite maps and environmental land surveys.

Historical Importance and Mapping

Colonial and Revolutionary History

The Great Dismal Swamp appears on early colonial maps due to its size and strategic location between inland Virginia and the North Carolina coast. It was once considered nearly impassable, and early explorers and settlers avoided the region. However, it later gained importance for transportation and timber extraction.

Refuge for Freedom Seekers

During the era of slavery, the Great Dismal Swamp served as a refuge for freedom seekers enslaved people who escaped plantations and lived in hidden communities deep within the swamp. These maroon communities are of great historical significance, and the swamp is marked on several historical maps as a zone of resistance and secrecy.

Finding the Great Dismal Swamp on Modern Maps

Digital Mapping Tools

Using modern digital maps or satellite imagery, the Great Dismal Swamp is easy to identify due to its large, undeveloped area and dense tree canopy. Mapping services like online satellite tools show the swamp as a dark green or blackish zone, often labeled as the Great Dismal Swamp National Wildlife Refuge.

Topographic and Environmental Maps

On topographic maps, the swamp is identified by its low elevation and flat terrain. Wetland markers, lake symbols, and the boundary lines of the refuge help users locate the swamp precisely. Environmental maps also display the watershed, flora zones, and ecological habitats tied to the swamp.

Tourism and Visitor Access

Visitor Centers and Trails

The U.S. Fish and Wildlife Service operates a visitor center near the swamp, offering maps, brochures, and guided access points. The Dismal Swamp Canal Trail runs along the edge of the refuge and is popular with hikers and cyclists. Maps for visitors show marked trails, boardwalks, and boat access points to Lake Drummond.

Public Access Points

Access to the swamp is possible via the following entry points

  • Washington Ditch TrailLocated in Suffolk, Virginia, this trail leads into the swamp interior.
  • Dismal Swamp Canal Welcome CenterLocated in South Mills, North Carolina, this center provides information and access to the canal system.
  • Lake Drummond Boat RampA designated launch point for boating inside the refuge.

Ecological Significance on the Map

Regional Ecosystem

The Great Dismal Swamp plays a crucial ecological role in the southeastern United States. It serves as a habitat for black bears, bobcats, deer, otters, and over 200 bird species. Its location near the Atlantic Flyway makes it important for migratory birds. Because of its size and function, it is marked on national conservation maps and included in environmental protection zoning maps.

Watershed Impact

The swamp feeds into several waterways, including the Northwest River and the Pasquotank River. Maps of regional watersheds always include the swamp’s influence in regulating water flow, filtering pollutants, and storing floodwaters. The Dismal Swamp Canal also connects to the Intracoastal Waterway, making it a significant feature on navigation and marine charts.

The Great Dismal Swamp is located in southeastern Virginia and northeastern North Carolina, forming a significant part of the Atlantic Coastal Plain. Its presence on the map is marked by its vast expanse, dense vegetation, and proximity to cities like Suffolk and Chesapeake in Virginia, and South Mills in North Carolina. Recognizable by the circular Lake Drummond at its center and outlined by protected refuge boundaries, the swamp is easy to locate on modern and historical maps alike. As a place of natural beauty, historical refuge, and ecological importance, the Great Dismal Swamp remains a defining feature of the southeastern United States and a unique destination for exploration and study.