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Countryside Council for Wales
Landscape & wildlife Please note - A new body, Natural Resources Wales has taken over all functions and services previously carried out by Countryside Council for Wales. While the Natural Resources Wales website continues to be developed, some online services will continue to be provided on this web site.


Lying in a small deep valley, the little wood at Coed y Cerrig is hidden away in the southern part of Black Mountains; its moist valley floor covered by an unusual type of alder woodland. Some areas of the woodland are coppiced to maintain this unique habitat.

The road through the reserve along the bottom of the valley was once a busy railway line burrowing deeper into the mountains, carrying materials to construct the Grwyne Fawr reservoir 14 kilometres away.

Grid Ref: SO290210   Area: 10.38 hectares

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To the south of the road a fully accessible boardwalk route runs for some 300-metres along the valley floor, passing through the wet woodland.

Photo ©CCW






The ground here is very wet, and the mud can get quite deep off the boardwalk.

Photo ©CCW









To the north of the road there is a short circular route which climbs steeply up a series of rough stone steps, before passing through the woodland and dropping off down a slope to the car park.

How to get there

The reserve is situated approximately six-and-a-half kilometres north of Abergavenny and three kilometres west of Llanfihangel Crucorney, on either side of a minor road between the small town of Crickhowell and the hamlet of Stanton.

There is informal parking for approximately four vehicles about halfway along the road that runs through the reserve.

Additionally, a bus route runs along the A465 to Llanfihangel Crucorney, three kilometres east of the reserve.

For more information on services and times, contact Traveline Cymru on 0871 2002233 or on www.traveline-cymru.org.uk


There is informal parking for approximately 4 vehicles, though the nearest accessible toilet facilities are in Abergavenny and Crickhowell some nine-and-a-half kilometres away.

Photo ©CCW

Who looks after it?

The reserve is managed by CCW.

You can contact the southern region reserves team via the CCW enquiries help line on 0845 1306229 or by email at enquires@ccw.gov.uk. You can also write to us at the address under ‘Contact the team’.

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Email address
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The landscapes team
C/O Enquiries
LL57 2DW
Telephone number
0845 1306229
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