PiddigPiddigProvince of Ilocos NorteDingrasDingrasSarratSarratSolsonaVintarSolsonaSan LorenzoSan LorenzoVintarBarongBarongSan NicolasSan NicolasPadongMarcosPadongMount MasadsadocMount PasuquinPaoay LakeLaoag International AirportMount AganmalaMount DinawananMount KilungMount NagdubadubanMount CasiamaMount BenerMount MukmukoroyaMount AgamomataMount Carongranga KnobMount LicudMount SicapooMount MangrupidMount LinaoMount CayudunganMount BurburanMount Pao