Cadw keeps information about scheduled monuments and listed buildings, as well as other types of historic sites, which can be accessed through Cof Cymru, our online mapping system.
Mae Cadw yn cadw gwybodaeth am henebion cofrestredig ac adeiladau rhestredig, yn ogystal â mathau eraill o safleoedd hanesyddol, y gellir eu gweld drwy Cof Cymru, ein system fapio ar-lein.