Garnedd Ugain, often referred to as Crib-y-Ddysgl, is a pyramidal mountain in Wales that forms part of the Snowdon Massif. It is the second-highest peak in Wales,. and lies just under one kilometre north of the summit of Snowdon itself. It is part of the Snowdon Horseshoe route, being linked to Crib Goch via the col at Bwlch Coch, and to Snowdon summit via the col at Bwlch Glas.