Wales
Mynydd Mawr
534M
1752FT
About Mynydd Mawr
Rising above the Tanat Valley, this broad, heather-clad dome offers a quieter perspective on the Berwyn range. While its name translates simply as ‘Big Mountain’, its appeal lies in the expansive views over the Shropshire border and the higher, craggier peaks of Cadair Berwyn to the west.
Key Statistics
Rank
274th Highest in Wales
Parent Range
Snowdonia
Prominence
?
104m
Nearest Town
Llanarmon Mynydd Mawr
Geology
You are walking on the Llangynog Formation, which is made of mudstone. This fine-grained rock was created from layers of ancient mud that hardened into stone.
Nearby Fells
Find It
OS Grid Reference
SJ132286
Latitude
52.8481°N
Longitude
3.2891°W
Did You Know?
- •The name is Welsh, meaning 'Big Mountain.' While its height is modest compared to the central Berwyns, it appears as a massive, imposing presence when viewed from the valley floor at the village of Llanarmon Mynydd Mawr.
- •From the summit trig pillar, the view stretches across the Shropshire border to the distinctive jagged silhouette of the Stiperstones and the rolling plateau of the Long Mynd.
- •The summit is marked by a large Bronze Age burial mound, a feature common to many prominent Welsh hilltops, which now serves as the base for the modern triangulation station.
- •The hill sits at the eastern edge of the Berwyns and is often climbed as part of a quieter loop that includes the neighbouring peak of Post Gwyn to the west.
- •Calling a 534-metre hill 'Big Mountain' while standing in the shadow of the much higher central Berwyn ridge suggests the original namers were masters of the local ego-boost.