© Licensed to London News Pictures. 11/02/2014. Ponterwyd , UK. Heavy overnight snow forces the closure of the main A44 trunk road at Nant yr Arian near Ponterwyd 13 miles inland from Aberystwyth over the Cambrian mountain in mid wales this morning. Gritter lorries and snowplows struggled to re-open the key transport route. Photo credit : Keith Morris/LNP