Congaree Swamp
Congaree Swamp, located in south-central South Carolina, is one of the largest remaining expanses of old-growth bottomland hardwood forest in the southeastern United States. Spanning approximately 42 square miles, this area is scientifically categorized as a floodplain forest rather than a swamp, as it does not maintain standing water year-round. The floodplain experiences periodic flooding, approximately ten times a year, which enriches the ecosystem by transporting nutrients and sediments from the Congaree and Wateree Rivers.
The Congaree Swamp is notable for its rich biodiversity, hosting over thirty species of mammals, 170 bird species, as well as numerous reptiles, amphibians, and fish. This habitat supports various wildlife, including bobcats, deer, and the occasional bald eagle. Historically, the Congaree peoples inhabited this land, but European settlement and subsequent logging activities threatened the area until it was designated as a national monument in 1976, and later as a national park in 2003.
Today, Congaree National Park attracts visitors with opportunities for hiking, canoeing, and bird-watching, while offering educational resources at its visitor center. However, the park faces ecological threats from climate change, which could impact its biodiversity and water quality. Environmental conservation efforts remain crucial to preserving this unique ecosystem for future generations.
Congaree Swamp
- Category: Inland Aquatic Biomes.
- Geographic Location: North America.
- Summary: The Congaree Swamp, actually known as a floodplain forest, supports some of the last remaining stands and largest examples of old-growth tree species in the United States.
The Congaree Swamp, located in south-central South Carolina, is the largest intact expanse of old-growth bottomland hardwood forest remaining in the southeastern United States. This small, now protected, area covers approximately 42 square miles (107 square kilometers). However, it is not scientifically classified as a swamp because it does not contain standing water throughout most of the year. In general, this floodplain habitat floods about ten times a year. Waters from the Congaree and Wateree Rivers move through this floodplain, carrying nutrients and sediments that nourish and rejuvenate the ecoregion.

![Baldcypress (Taxodium distichum) on Congaree National Park Low Boardwalk trail. By Miguel.v (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons 94981313-89310.jpg](https://imageserver.ebscohost.com/img/embimages/ers/sp/embedded/94981313-89310.jpg?ephost1=dGJyMNHX8kSepq84xNvgOLCmsE2epq5Srqa4SK6WxWXS)
![Red-banded Hairstreak (Calycopis cecrops) at Congaree National Park, South Carolina, USA. By Theresa Thom [Public domain], via Wikimedia Commons 94981313-89311.jpg](https://imageserver.ebscohost.com/img/embimages/ers/sp/embedded/94981313-89311.jpg?ephost1=dGJyMNHX8kSepq84xNvgOLCmsE2epq5Srqa4SK6WxWXS)
Habitat Biodiversity
The Congaree Swamp biome supports a diversity of wildlife. Surveys of the park list thirty species of mammals, 170 birds, thirty-two reptiles, thirty amphibians, and forty-nine fish species. The national bird, the bald eagle, is occasionally seen flying over the Congaree swamp but is not known to be nesting there at present. The wetting and drying of the floodplain are beneficial for several amphibians and crayfish, including swamp crayfish and chimney crayfish. Yellow-bellied sapsuckers and many woodpeckers can be found here, as can bobcats, deer, river otters, alligators, and feral pigs. Several snakes dwell in the swamp, including the venomous cottonmouth.
The value of the Congaree is also in its ability to provide clean water. Floodplains and wetlands store water and filter out pollutants with the assistance of vegetation. Thus, these systems are critical for providing clean drinking water, habitat support, and also water for recreational purposes.
Human Impact
The first humans documented as living in what is now known as Congaree National Park were those of the indigenous tribe whose name is that of the park and its river: Congaree.
A small band, it is thought that the Congaree peoples were related to or part of one of the isolated eastern extensions of the Sioux nation of the Great Plains. They also had close connections to the Catawba and Shawnee, although they spoke a different dialect. The Congaree were a relatively small group, numbering 800 at most. They claimed the floodplain land where they had long subsisted on farming, hunting, and fishing. The arrival of the European settlers around 1700 and the introduction of smallpox devastated Indigenous populations.
Throughout much of the 1700s and 1800s, attempts were made by the new settlers to adapt to the land and make it suitable for crops and livestock. However, since the floodplain was flat and flooded often, these attempts failed. Later, the land attracted various logging operations because of the abundant population of bald cypress. By 1905, the Santee River Lumber Company had purchased most of the land in the Congaree Swamp. The company soon found that logging would not be profitable because of the wet soils, which were difficult to navigate. However, when timber prices spiked in 1969, the lumber company reevaluated ways to harvest the area.
In 1976, to help protect the swamp from logging operations, the U.S. Congress, with pressure from the Sierra Club and local groups, established the Congaree Swamp National Monument. The swamp has since gained international attention. In 1983, it was designated an International Biosphere Reserve and a Globally Important Bird Area. In 2003, it was designated a National Park.
There are new ecological threats to the Congaree Swamp. Climate change is expected to affect temperature and precipitation patterns, accelerate rising sea levels, and increase the frequency and intensity of hurricanes and tropical storms. Although the subsequent impacts on coastal wetlands will vary, rising sea levels and even small changes in the quality of tropical storms and hurricanes are expected to have substantial impacts on coastal wetlands. They will likely affect the community structure of ecosystems, exacerbate extinction rates, and undercut biodiversity, in part by disrupting essential processes such as nutrient cycling in the Congaree Swamp.
National Park
According to the National Park Service, 159,445 people visited Congaree National Park in 2019, the last year before the 2020 COVID-19 pandemic forced restrictions on many public activities. In 2020, the park received 119,306 visitors, making it the thirteenth least-visited national park in the United States. In 2021, the park received 215,181 visitors. The park can be visited year-round for free and offers visitors the opportunity to hike, canoe, kayak, and bird-watch. Fishing in the park is allowed with a valid South Carolina fishing license. The park also allows camping in tents, though RVs are not allowed. It has two campsites with minimal amenities and allows backcountry camping (or camping outside of the designated sites) with a permit. There are no other forms of lodging and no food services in the park. The park's Harry Hampton Visitor Center issues backcountry camping permits, provides trail information, and houses exhibits on the park's history and related conservation efforts. There is a bookstore that sells books about the history and nature of the park as well as souvenirs and small items that visitors might need, such as trail mix and sunscreen.
Visitors to the park most commonly walk along the Boardwalk Loop, a 2.4-mile elevated walkway that allows visitors to walk around the park even when it is flooded. The park also has many other hiking trails that allow a closer look at the flora and fauna living there. Park rangers and volunteers lead hikes and canoe tours regularly; many of these are also free.
Bibliography
"Congaree National Park." National Geographic, 5 Nov. 2009, www.nationalgeographic.com/travel/national-parks/congaree-national-park/. Accessed 9 Nov. 2024.
"Congaree National Park South Carolina." National Park Service, www.nps.gov/cong/index.htm. Accessed 9 Nov. 2024.
Jones, R. H. Location and Ecology of Champion Trees in Congaree Swamp National Monument. Virginia Polytechnic Institute and State University, 1996.
Melroy, Jennifer. "The Least Visited National Parks in 2020." National Park Obsessed, 18 Apr. 2021, nationalparkobsessed.com/least-visited-national-parks/. Accessed 9 Nov. 2024.
National Park Service. "Water Resources Management Plan—Congaree Swamp National Monument, 1996." National Park Service, nature.nps.gov/water/planning/wrmp.cfm. Accessed 9 Nov. 2024.
Putz, F. E., and R. R. Sharitz. "Hurricane Damage to Old-Growth Forest in Congaree Swamp National Monument, South Carolina, U.S.A." Canadian Journal of Forest Research, vol. 21, no. 12, 1991, pp. 1765-70.