Hikers in the Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range in front, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

Llyn Ogwen, Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range on either side, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

A small unnamed source in the Ogwen Valley (Dyffryn Ogwen) with the Glyderau mountain range behind, Gwynedd, Snowdonia National Park, Wales, United Kingdom, Europe

Water cascading down a fall on the Afon Lloer, overlooking the Ogwen Valley and Tryfan in the Glyderau mountain range, Snowdonia, Wales, United Kingdom, Europe

Water cascading down a fall on the Afon Lloer, overlooking the Ogwen Valley and Tryfan in the Glyderau mountain range, Snowdonia, Wales, United Kingdom, Europe

Glacial Erratic Boulder backed by the Glyderau Mountains, Cwm Idwal, Snowdonia National Park, Eryri, North Wales, United Kingdom, Europe

The Nant Ffrancon Valley backed by the Glyderau mountains in winter, Snowdonia National Park, Eryri, North Wales, United Kingdom, Europe

Frosty morning in the Nant Ffrancon valley backed by the Glyderau Mountains, Snowdonia National Park, Eryri, North Wales, United Kingdom, Europe