PiddigPiddigProvince of Ilocos NorteDingrasDingrasSolsonaSolsonaSarratSarratVintarVintarSan LorenzoSan LorenzoBarongBarongPadongPadongMount MasadsadocMarcosMount PasuquinMarcosSan NicolasMount AganmalaMount DinawananPaoay LakeLaoag International AirportMount KilungMount NagdubadubanMount CasiamaMount BenerMount MukmukoroyaMount AgamomataMount LicudMount Carongranga KnobMount SicapooMount LinaoMount MangrupidMount BurburanMount CayudunganMount Pao