Yr Eifl
Yr Eifl is a mountain on the north coast of the Llŷn Peninsula in Gwynedd, Wales.
It has three summits, each quite separate from the others, and this is often supposed to be the source of the English name The Rivals. But this is merely an anglicised form of Yr Eifl, meaning "the forks" or "the strides" (Welsh: gafl, plural geifl).
On a clear day, the views from the top summit reach as far as the Isle of Man, the Wicklow mountains in Ireland and the Lake District, as well as the entire sweep of Cardigan Bay.
The view of Yr Eifl is especially striking from the SW coast of Anglesey, for instance from Llanddwyn island.
The OS Maps show a height of 564 metres, but a recent survey gives the height at 561 metres (1,841 feet).
The three peaks
There are three peaks:
Tre'r Ceiri (485 metres (1,591 ft)),
Garn Ganol (561 metres (1,841 ft)) and
Garn For (444 metres (1,457 ft)).
Garn Ganol, the central summit, is the highest point on Llŷn, with an ancient cairn, and it houses the trig point;
Across the pass "Bwlch yr Eifl", and overlooking the sea, is Garn For, the northern summit. It has a microwave radio relay station on it, as well as cairns and granite quarries (producing the material for the curling event at the 2006 Winter Olympics), and a cliff face leading down to the Irish Sea.