Ridge to Waun Fach – Twmpa (Lord Hereford’s Knob) loop from Castell Dinas

Running trails & routes

Ridge to Waun Fach – Twmpa (Lord Hereford’s Knob) loop from Castell Dinas

Hard

5.0

(1)

runners

Ridge to Waun Fach – Twmpa (Lord Hereford’s Knob) loop from Castell Dinas

03:21

23.4km

970m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 5, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Parking

Get Directions

4.12 km

Ridge to Waun Fach

Highlight • Trail

If you do the Waun Fach Loop you can take in Pen Cerrig Calch and six other Nuttalls and it is a glorious 25km high level route with nearly 1,000m of height gain. For route details click here: komoot.com/tour/280372758

Tip by

5.70 km

Waun Fach summit

Highlight • Summit

A silent giant, Waun Fach is the highest point in South Wales' Black Mountains. Its gradual slopes and the flat nature of its summit mean that it can hardly be …

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5.70 km

Waun Fach Ordnance Survey Marker

Highlight • Monument

8.12 km

Grwyne Fawr Reservoir

Highlight • Historical Site

Highly recommend ❤️
Gwyne Fawr Reservoir -is located in the valley of the river Grwyne Fawr in the Brecon Beacons National Park, Wales. Completed in 1928, it has the capacity …

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10.8 km

Twyn Talycefn

Highlight • Viewpoint

Twyn Talycefn at 702m is a subsidiary peak southwest of the main summit of Rhos Dirion. It's a brilliant ridge to run up or down.

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14.5 km

Twmpa (Lord Hereford’s Knob)

Highlight • Viewpoint

Twmpa, or Lord Hereford's Knob, is a mountain in southeast Wales, forming a part of the great northwest scarp of the Black Mountains. It lies 1.86 miles (3 km) west …

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16.8 km

Rhos Dirion summit

Highlight • Natural Monument

Rhos Dirion is a summit in the Black Mountains. It is the highest point on the Rhos Dirion-Chwarel y Fan ridge and the summit is marked by a trig point. Rhos Dirion is a UK-listed Nuttall.

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22.6 km