Garnedd Ugain

Garnedd Ugain is a mountain in Snowdonia reaching 1,065 meters (3,494 feet) as the second-highest peak in Wales. The mountain displays pyramidal slopes and connects to surrounding ridges within the broader Snowdon Massif.

The Welsh name translates to 'Cairn of the Twenty' and may reference a Roman legion stationed at the nearby fortress of Caernarfon. This connection points to the long history of human occupation in the region.

The peak features in a popular climbing challenge where visitors attempt to summit all mountains over 3,000 feet across Wales. This goal brings together people who want to experience the mountain landscape and its role in Welsh outdoor culture.

The mountain is accessible from Pen-y-Pass via the Snowdon Horseshoe route, a popular hiking path with several climbs and descents. Winter ascents need mountaineering experience, proper equipment, and comfort with snow-covered terrain.

A steep rocky ridge called Clogwyn y Person drops sharply from the northeastern side directly into the rocky basin of Cwm Glas below. This dramatic slope is known among experienced climbers as an alternative route that presents serious technical challenges.

Location: Gwynedd

Elevation above the sea: 1,065 m

Part of: Snowdon Massif

GPS coordinates: 53.07555,-4.07521

Latest update: December 10, 2025 16:02