Cwm Idwal is a hanging valley in the Glyderau range of mountains in Snowdonia, North Wales. Its main interest is to hill walkers and rock climbers, but it is also of interest to geologists and naturalists.
The north-facing amphitheatre-shaped valley of Cwm Idwal with its dark cliffs has a unique flora, and some plants here are the most southerly remnants in Britain of the Arctic/Alpine flora. The Snowdon lily (Lloydia serotina) is found here, high on mountain ledges, the only place in Britain where it is found.
May 6th, 2017
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