Waccamaw River

The Waccamaw River is a river, approximately 140 miles (225 km) long, in southeastern North Carolina and eastern South Carolina in the United States. It drains an area of approximately 1110 square miles (2886 km²) in the coastal plain along the eastern border between the two states into the Atlantic Ocean. Along its upper course, it is a slow-moving, blackwater river surrounded by vast wetlands, passable only by shallow-draft watercraft such as canoe. Along its lower course, it is lined by sandy banks and old plantation houses, providing an important navigation channel with a unique geography, flowing roughly parallel to the coast.

The Waccamaw River begins its course at Lake Waccamaw, a Carolina Bay in Columbus County, North Carolina. Downstream it forms the county line between Columbus and Brunswick Counties, flowing generally southwest and parallel to the coastline; it is separated from the ocean by approximately 15 miles (24 km). It enters South Carolina and flows southwest across Horry County, past Conway. Near Burgess it is joined from the northwest by the Great Pee Dee River which rises in north central North Carolina. It continues southwest, separated from the ocean by only five miles (8 km) in a long tidal estuary. The long narrow point of land along the ocean formed by the lower river is called Waccamaw Neck. At Georgetown it receives the Black River (South Carolina) from the north, then turns sharply to the southeast and enters the ocean at Winyah Bay, approximately five miles (8 km) north along the coast from the mouth of the Santee River.

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