Snowdon
Snow |don |ˈsnəʊd (ə )n | a mountain in NW Wales. Rising to 1,085 m (3,560 ft ), it is the highest mountain in Wales. Welsh name Yr Wyddfa.
Snowdonia
Snowdonia |snəʊˈdəʊnɪə | a massif region in NW Wales, forming the heart of the Snowdonia National Park. Its highest peak is Snowdon.