The Harvey Point Defense Testing Activity facility, owned by the Department of Defense, is located on a peninsula in Perquimans County, North Carolina, along the Albemarle Sound, near the city 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 during and after World War II. Its sister facility is Camp Peary.