image for Nature Reserve item typeAllt Rhyd y Groes Nature Reserve

Allt Rhyd y Groes Nature Reserve

Allt Rhyd y Groes Nature Reserve

Nature Reserve, free entry



01654 702653


SA20 0PL


The sessile oak wood at Allt Rhyd y Groes near Llandovery, characteristic of woodlands in this part of Wales, hangs onto the steep northeast-facing slope of a hillside. Part wooded and part open, the Reserve takes in craggy heathland, grassland, tumbling streams and some fascinating and very rare species - all tucked up inside this northern Carmarthenshire valley. Further up the valley the exposed rocks, heathland and grassland - as well as many of the trees in the woodland - are home to a wide range of mosses and lichens, some of which are uncommon. The reserve is part of the Cwm Doethie - Mynydd Mallaen Site of Special Scientific Interest and Special Area of Conservation.

Networks of paths provide access through the woodland and meadows. You can see swathes of heathland and upland grassland, together with views of the open valley and its craggy flanks, by tackling some steep and very rough ground. Please note, no paths are maintained outside the woodland.

Open all the time


Free entry



Plan route to Allt Rhyd y Groes Nature Reserve using Google mapsPlan route using Google maps

Map reference: SN 769377  Lat: 52.02414 Long: -3.79494

From Llandovery, take the road to Rhandirmwyn (in the town off the A483). Follow the road from Rhandirmwyn towards Llyn Brianne; after 2.5 miles, take the second road on the left, signposted Troedrhiw. Cross the concrete bridge over the Tywi and follow the narrow road for 0.75 mile to the wooden-decked bridge. Walk the final 0.5 mile along a rough track to the start of the Reserve, keeping the river to your right.

Parking: free

Accessible by Public Transport: 15 miles from Llandovery station

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