Elenydd - a Site of Special Scientific Interest in Ceredigion, west Wales.
To their north and west are the similar lithologies of the Derwenlas Formation which can be seen for example beside the dam of Claerwen Reservoir.
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The Rhayader Mudstones overlie these and are to be found further north and west again forming such summits as Esgair Penygarreg, Moelfryn and Craig Dyfnant.
Elenydd |