This is a list of the Sites of Special Scientific Interest (SSSIs) in the Powys Area of Search (AoS). [1]
Nant Gwynant is a valley in northern Wales. The A498 road descends 600 feet (180 m) into the valley in about two miles (3 km) from Pen-y-Gwryd; it follows the Nant Cynnyd, the Afon Glaslyn and alongside Llyn Gwynant, then beside the Nant Gwynant river to Llyn Dinas and passing below Dinas Emrys to Beddgelert. The road continues through the Aberglaslyn Pass to Porthmadog.
Mawr is a community in south Wales.
Caeau means fields in Welsh and may refer to the following Sites of Special Scientific Interest in Wales: