The Harvey Point Defense Testing Activity facility, owned by the Department of Defense, is located on a peninsula in Perquimans County, North Carolina, along Albemarle Sound, near the town of Hertford, NC. It was established in World War II as Naval Auxiliary Air Station Harvey Point, an operating base for sea planes conducting anti-submarine surveillance off the Atlantic coast. A close by naval facility, Naval Air Station Weeksville, served as a blimp base from 1941 to 1957, while another former naval air facility remains active as Coast Guard Air Station Elizabeth City.