The Glyderau (a Welsh plural form, also known in English as the Glyders) are a mountain group in Snowdonia, North Wales. The name derives from the highest peaks in the range, Glyder Fawr and Glyder Fach. According to Sir Ifor Williams, the word "Glyder" derives from the Welsh word "Cludair", meaning a heap of stones.
Start from Llyn Ogwen follow path to base of Milestone Buttress then follow base of the crag onto the N ridge. Ascend the ridge over easy rock pitches (grade 1)and rocky steps to summit. Return over blocks SW to scree path then over open ground N back to start.
