Albemarle Sound, a large inlet of the sea on the northern part of the coast of North Carolina, extending 60 m. into the country, and having a width of from 4 to 15 m. It is separated from the sea by a narrow island, is not affected by the tides, receives the waters of the Roanoke and Chowan rivers, and is nearly fresh. It has connection with Currituck and Pamlico sounds by inlets, and with Chesapeake bay by a canal cut through the Great Dismal swamp. This sound has not a great depth of water, and is of comparatively little value for commercial purposes.