Flwyddyn i heddiw y gwelwyd tirlithriad Tylorstown yn Rhondda Cynon Taf, a achoswyd gan law trwm a llifogydd ym mis Chwefror 2020. Ers hynny, mae tair cynhadledd tomenni glo wedi cael eu trefnu ac mae'r gwaith o fapio tomenni glo ledled Cymru wedi'i gynnal, ac mae archwiliadau a gwaith cynnal a chadw’n mynd rhagddynt.
Today marks one year on from the Tylorstown landslide in Rhondda Cynon Taff, which was brought on following heavy rainfall and floods in February 2020. Since then, three coal tips summits have been convened and mapping of coal tips across Wales carried out, inspections and maintenance works are on-going.