It follows a motion brought by a Gwynedd county councillor that Snowdonia National Park authorities be asked to only refer to Snowdon as Yr Wyddfa, and Snowdonia as Eryri.
The highest mountain in Wales, Snowdon - also known as Yr Wyddfa - stands at 3,560ft (1,085m).
I can only see this resulting in confusion and Welsh names being incorrectly spelt. Maybe the Gwynedd council have a money surplus so can spend money changing signs so the English speakers get lost when trying to find the way? I also don't think the Welsh government would take kindly if TfGM said trains coming into Manchester must only show the English name for Manchester and not the Welsh name as well.