Crib y Ddysgl is a narrow ridge not far from the 3, 560ft (1, 085m) summit of Snowdon.

BBC: NEWS | UK | Wales | North West Wales | Warning after boy's Snowdon death

It takes its name from the huge, red rock that stands aloof in the desert, towering above a narrow ridge that points towards it like an arrow.

BBC: New Mexico��s alien nation

The trail extends, for the adventurous, into a five-day circuit along the Holy Ridge, a narrow craggy ridgeline with sheer drops of 1, 000m on both sides.

BBC: Hiking in the landslide capital of the world