Diffwys

Marking the southern anchor of the Rhinogydd, this broad ridge offers a softer introduction to the range than the rugged 'badlands' further north. From its trig point, the terrain drops sharply eastward, revealing a commanding view across the Mawddach Estuary toward the grand, dark wall of Cadair Idris.

• •The name Diffwys is Welsh for 'precipice' or 'steep slope', describing the mountain’s dramatic eastern face which plunges into the valley of the Afon Cwmnantcol.
• •The ridge leading from the summit features an impressive dry stone wall; these high-altitude boundary walls are a characteristic feature of the Rhinogydd, built with immense effort by 19th-century hill farmers to manage grazing stock.
• •Traces of the area's industrial past are visible on the lower western approaches, where several manganese mines operated during the late 1800s to supply the steel industry.
• •On a clear day, the summit offers an expansive coastal panorama, stretching across Cardigan Bay to the Llŷn Peninsula and the jagged silhouettes of the northern Snowdonia peaks.
• •It is technically classified as a 'Sub-Marilyn', missing the 150-metre prominence required for full Marilyn status by a frustratingly narrow margin of just two metres.