A petition has been launched calling on Parc Cenedlaethol Eryri to use only the Welsh name, Yr Wyddfa, when referring to the country's tallest mountain.
The petition launched on Wednesday (28 April) by Elfed Wyn ap Elwyn is also calling for the endonym, Eryri, to be used exclusively in lieu of Snowdondia.
Campaigner and farmer Mr ap Elwyn has previously called for the inclusion of Welsh history on the country’s curriculum and went on a seven-day hunger strike in 2018 to pressure politicians to devolve broadcasting powers to the Senedd.
Mr ap Elwyn says: "Using the name of Yr Wyddfa and Eryri alone shows the importance of the Welsh language to the people of Wales; changing people's view of the language and making it more visible to people who come here on holiday."
On Wednesday (28 April), councillors rejected a motion by Councillor John Pughe Roberts calling on the national park authority to only use the Welsh-language place names.
The motion said: “That the authority hereafter uses only the authority’s Welsh name for the authority and that this becomes relevant in any language i.e. ‘Parc Cenedlaethol Eryri’ and never uses ‘Snowdonia National Park’ again.