Erh-lung is one of the 18 villages that make up Chiaohsi rural district and was founded some 200 years ago, when Wu Sha pioneered the first Chinese settlements on the Ilan Plain.
二龍村是礁溪鄉十八個村之一，開發年代與吳沙率眾前來噶瑪蘭時間相近（民國前一一五年），距今近二百年。