EntityQ5064983· pop 5· linked from 13 articlesCerro RomauldoSign in to savemountain in United States of AmericaConnectionsSpanishEntityCaliforniaEntitygeographic coordinate systemEntitymountain rangeEntitygeologic time scaleEntitysummitEntitySan Luis Obispo CountyEntityUnited States Geological SurveyEntitytopographic mapEntityNational Oceanic and Atmospheric AdministrationEntityUnited States Department of CommerceEntityUnited States Department of the InteriorEntityGeographic Names Information SystemEntityvolcanic plugEntityAlta CaliforniaEntitySierra ClubEntityChumash peopleEntityvolcanic fieldEntitySouthern Pacific Transportation CompanyEntityNormal routeEntityCategoriesLandforms of San Luis Obispo County, CaliforniaMiocene CaliforniaMountains of Southern CaliforniaNine SistersVolcanic plugs of CaliforniaVolcanoes of California