How Big Is The Great Dismal Swamp?
How Big Is The Great Dismal Swamp? The swamp is now about 37 miles (60 km) long north to south and covers an area of approximately 750 square miles (1,940 square km). About 167 square miles (433 square km) of this is protected within Great Dismal Swamp National Wildlife Refuge, established in 1974. Why is