Mountain peaks around Llwyn-Y-Pia, situated in the Rhondda Fawr Valley within Rhondda Cynon Taf, offer elevated terrain suitable for scenic walks and panoramic views. The area features hills and summits rather than traditional towering peaks. These locations provide opportunities to explore natural landscapes and gain perspectives over the surrounding valleys and towns. The region's terrain supports various hiking experiences, from challenging treks to shorter ridgeway walks.
Last updated: June 30, 2026
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Twyn Crugyrafan (Graig Fawr) 559m P36 (1834ft) TP7409 - Crug Yr Afan S1596 Welsh Dewey and Dodd summit Welsh Trig Pillar
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We walked miles. Up to the waterfall on Gillies trail, followed the path up onto the rocky and then to the trig point on Twyn Brynbychan, above the cynnon valleys. Enjoyed a breather on top, before trekking around the back forestry where you can see Aberfan and Merthyr Vale and headed over to the bronze age sight before descending down to Cwmaman and back to the car.
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Mynydd y Glyn is a mountain in South Wales, between the towns of Pontypridd and Tonyrefail. It has a height above sea level of 377 metres. It is the mountain which was used in The Englishman who went up a Hill and came down a Mountain in which Hugh Grant and Ian McNeice star as English cartographers. In the film the mountain is known as 'Ffynnon Garw'. It is a UK listed Marilyn.
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Cefn Eglwysilan is a hill in South Wales, the twin 1,253 feet (382 m) summits of which lie just over one mile (2 km) east of Pontypridd in Rhondda Cynon Taf county borough. Its eastern side lies within the community of Aber Valley in Caerphilly county borough. Like neighbouring Mynydd Eglwysilan, the hill is named after the hamlet of Eglwysilan, the church here being dedicated to an obscure saint Ilan. A wireless transmission station is sited on the more northerly of the two summits (at OS grid ref ST 099911). The southerly one is crowned by a trig point. It is a UK listed Marilyn.
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Werfa is the highest point in Bridgend and is located just off the A4107 a few miles east of Cymmer.
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The Llwyn-Y-Pia area, situated in the Rhondda Fawr Valley, features elevated terrain and hills that provide excellent opportunities for scenic walks and panoramic views, rather than traditional towering mountain peaks. These locations offer diverse hiking experiences and impressive vistas over the surrounding valleys and towns.
For expansive views, consider Twyn Brynbychan Trig Point, which offers vistas stretching to the Brecon Beacons, the Vale of Glamorgan, Cardiff, and even the Bristol Channel. Llwynypia Mountain also provides rewarding views over Tonypandy and Clydach Vale, with Cardiff visible on clear days.
Yes, Llwynypia Mountain offers a challenging 5km trek that winds through forestry. The strenuous ascent is rewarded with expansive views. Another intermediate option is Cefn Eglwysilan Trig Point, a hill with twin summits east of Pontypridd, which is a UK listed Marilyn.
While exploring Llwynypia Mountain, you can walk through forestry and, in season, enjoy bluebells. The nearby Glyncornel Lake offers a peaceful spot. Many of the peaks, like Twyn Brynbychan Trig Point, feature trig points and offer short ridgeway walks through woodlands, meadows, and forestry tracks.
The highest point in the Bridgend area, which is part of the wider region, is Werfa (Mynydd Llangeinwyr), standing at 568 meters. It is recognized as a Welsh Dewey and Dodd summit.
When starting the Llwynypia Mountain trek, you'll pass Glyncornel House, which was once a hospital and is now an environmental center. Additionally, Mynydd y Glyn Summit is notable for being the mountain featured in the film 'The Englishman who went up a Hill and came down a Mountain'.
Llwynypia Mountain is easily accessible by public transport and is close to a town center, making it convenient for visitors without a car. For other peaks, it's advisable to check local transport links to specific starting points.
Beyond hiking, the area around Llwyn-Y-Pia offers various outdoor activities. You can find numerous running trails, including moderate loops from Ystrad Rhondda and Tonypandy. For cyclists, there are road cycling routes like the 'View of Cwm Parc and Treorchy' loop, and MTB trails such as the 'Cwm Clydach Countryside Park' loop.
While specific family-friendly ratings aren't provided for all peaks, the shorter ridgeway walks on hills like Twyn Brynbychan Trig Point, which traverse woodlands and meadows, can be suitable for families looking for less strenuous options. The Glyncornel Nature Reserve at the base of Llwynypia Mountain also offers a pleasant environment.
Visitors particularly appreciate the rewarding panoramic outlooks from various summits, with many noting the 'great views in every direction.' The opportunity for challenging treks through forestry, the peaceful natural settings like Glyncornel Lake, and the accessibility of some locations are also highly valued.
Yes, Cefn Eglwysilan Trig Point is a notable hill with twin summits, located just over a mile east of Pontypridd. Its southerly summit is crowned by a trig point, and it is recognized as a UK listed Marilyn.
Absolutely. Both Werfa (Mynydd Llangeinwyr) and Twyn Crugyrafan (Graig Fawr) Summit are recognized as Welsh Dewey and Dodd summits, offering specific objectives for peak baggers.


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