Since the last update provided in February 2021, we have continued to work with the Coal Authority, local authorities and Natural Resources Wales to identify all disused coal tips across Wales.
Ers y diweddariad diwethaf a ddarparwyd ym mis Chwefror 2021, rydym wedi parhau i weithio gyda'r Awdurdod Glo, awdurdodau lleol a Chyfoeth Naturiol Cymru i nodi'r holl dipiau glo segur ledled Cymru.