Know before you go
Parking informationPark either in the layby on the A487 roadside (SH 748 084) or on the parallel-running back road
On public footpath, steep in places
The site forms part of a steep valley, without clearly defined paths other than the public footpath that crosses the reserve. Be wary of the fast-running river.
When to visit
Opening timesOpen at all times
Best time to visitYear round
About the reserve
Oak, ash and hazel trees create a thick leafy canopy in this steep-sided valley, providing shelter for lots of nesting birds and invertebrates. The River Deri runs through the site, creating a natural corridor and providing the soundtrack to your visit. The moist air around the river creates an environment where mosses and ferns thrive, bringing their bright green colours into the dimly lit forest floor. The reserve’s habitats contrast nicely with the large area of coniferous woodland that runs throughout this valley: the wider variety of trees and presence of the river provide opportunities for a more diverse range of species to flourish around them.
Abercorris lies on both sides of the River Deri, just off the A487: approximately mid-way between Dollgellau and Machynlleth. Between Upper (Corris Uchaf) and Lower Corris, park either in the layby on the A487 roadside (SH 748 084) or on the parallel-running back road. From the layby, follow the public footpath signs across the river and into the reserve.