Provincial Government of Ilocos Sur - Philippines

Before the coming of the Spaniards, the coastal plains in northwestern Luzon, stretching from Bangui (Ilocos Norte) in the north to Namacpacan (Luna, La Union) in the south, were as a whole known as a progressive region called the Ylokos. This region lies in between the China Sea in the west and Northern Cordilleras on the east. The inhabitants built their villages near the small bays on coves called “looc” in the dialect.