Graham Eaton / A split-level image of a mountain stream, in autumn, with water droplets on lens, Nant Ffrancon Valley, Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / Roche moutonnee or Sheep's back at the head, Nant Ffrancon Valley, Snowdonia, Wales, UK, November. The rock is carved by ice moving down the valley leaving a relatively smooth back edge and top, w...

Alan Williams / View looking west across the Nant Ffrancon valley with Foel Goch on the right and Y Garn on the left, Snowdonia National Park, North Wales, UK, March.