The Minister for Climate Change and Deputy Minister for Climate Change have agreed to fund a survey of mobile phone coverage on road and rail routes in north Wales.
Mae’r Gweinidog Newid Hinsawdd a’r Dirprwy Weinidog Newid Hinsawdd wedi cytuno i ariannu arolwg o signal ffôn symudol ar ffyrdd a rheilffyrdd yn y Gogledd.