Mount EstileteGregorio del PilarMount TiradGregorio del PilarGregorio del PilarQuirinoSpike PeakQuirinoMount AmpayaoQuirinoSigaySan EmilioTuboSalcedoSan EmilioSalcedoSalcedoProvince of Ilocos SurMount MonserratSigayMount QuinaliMount MonondonAllangigan PrimeroAllangigan PrimeroGalimuyodLidliddaLidliddaMount TinimoganMount NaliboMount AntinangadMount KapnisMount CacamtananMount BanudMount MaspitMount TinandananMount NadangoMount PangpangBald PeakMount NamogoianMount Loco-ono