Coed Cilygroeslwyd

Coed Cilygroeslwyd Nature Reserve

Coed Cilygroeslwyd Nature Reserve

Wood anemone

Wood anemone © Bruce Shortland


Hawfinch © Andy Morffew


Bluebells - Katrina Martin 2020Vision

Coed Cilygroeslwyd

One of North Wales Wildlife Trust’s first nature reserves, purchased in 1964: home to some genuine rarities and brimming with wildlife.


LL15 2PB (Siop Pwllglas with large car park)

OS Map Reference

OS Explorer Map 265
A static map of Coed Cilygroeslwyd

Know before you go

4 hectares

Entry fee


Parking information

There's a large car park at Siop Pwllglas, about 10 minutes walk from the reserve

Grazing animals


Walking trails

A number of paths through woodland, steep in places.  Although the site is fairly easy walking, there is no wheelchair access due to the ground conditions – entry to the reserve is via either a stone stile or farm gate, and paths to the site are uneven and slippery in the wet.


The easiest place to park is in the car park by Siop Pwllglas, the reserve is about 10 minutes walk up a steep but quiet  lane, heading off past Capel y Rhiw.

Alternatively, park in the layby just close to the River Clwyd  (SJ127553), off the road to Llanfair DC.  A finger post marks the reserve entrance but care is needed crossing the A494


On a lead

When to visit

Opening times

Open at all times

Best time to visit

Spring for dawn chorus, pied flycatchers and wild daffodils

About the reserve

This mixed-broadleaf and yew woodland holds many surprises – not least that it’s probably not as old as one would think, despite its wildflowers (wood anemone, sweet woodruff, sanicle and bluebell) being more usually associated with ancient woodlands. The site’s underlying geology may explain this: the woodland is situated on a large expanse of limestone pavement, with the cracks creating the perfect microclimate to enable these plants to have survived even when the original ancient woodland had disappeared and the land been grazed. Whilst oak and ash make up most of the canopy, more unusual are the areas of yew, whose seeds are a favourite winter food of hawfinches. (This is the only such yew woodland in Clwyd.) Another rarity found at this site is limestone woundwort, the county flower of Denbighshire, found at only two sites in Wales.

Coed Cilygroeslwyd lies 2 miles South of Ruthin on the A494. Heading South on this road, turn Left at the signpost for Llanfair DC and park in the layby (SJ 127 553) making sure not to block the field gate. Walk back over the bridge, carefully cross the A494, and follow the signposted footpath up to the reserve (SJ 124 552). Alternative parking and refreshments are available at Siop Pwll-glas: use a map to follow public rights of way up the lane (past Capel y Rhiw) and across fields to the reserve.

Contact us

Jordan Hurst
Contact number: 01248 351541

Environmental designation

Site of Special Scientific Interest (SSSI)