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Mynydd Du

About Mynydd Du

The forest of Mynydd Du lies in the upper reaches of the Grwyne Fawr on the southern side of the Black Mountains. Until the 19th century the valley was intensively settled with over 30 farmsteads surrounded by small stone-walled fields. In the early 20th century the Grwyne Fawr reservoir was built at the head of the valley and a village was established to house the workers. Foundations of several village buildings, including the old stone school can still be seen.

How to get there:

Mynydd Du is part of Brecon Beacons National Park Forests. Abergavenny and Hay on Wye are the nearest towns or villages.

From Abergavenny follow A465 North. After appoximately 4 miles turn left at Llanvihangel Crucorney (Follow signs to Llanthony Abbey). At Stanton (appoximately 2 miles) turn left and follow Forest Coal Pit signs. Follow the road to Mynydd Du (6 miles).

OS Grid Reference: SO 268252
For details of public transport visit

Start your visit from:

Blaen y Cwm Picnic Site
Cadwgan Car Park

Other places to go in Brecon Beacons National Park Forests



ParkingOther Facilities


WalkingHorse Riding
horse riding

Open access for horse riders. Good parking but with difficult access.


Llanymddyfri Office

0300 065 3000

What's of interest

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Two Brecon Beacons Mountain Bike trails pass through Mynydd Du forest, for more information use the link to the website below.

The area is now under trial for continuous cover forestry.

Related pages

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