dismal swamp

noun

1. a swamp in SE Virginia and NE North Carolina. About 30 miles (48 km) long; about 600 sq. mi. (1500 sq. km).

noun

1. a coastal marshland in SE Virginia and NE North Carolina: partly reclaimed. Area: about 1940 sq km (750 sq miles). Area before reclamation: 5200 sq km (2000 sq miles)