The Forest of Dean, in the Wye Valley, was proclaimed as a National Forest Park in 1938. It is a refuge for some ancient woodland, particularly oak, beech and sweet chestnut.
There is a wild population of fallow deer in the forest and there may be some roe deer present. A controversial population of wild boars were illegally introduced, although they were likely to have occurred there previously. Badgers, grey squirrels, voles, hedgehogs, dormice and foxes are also found in the area. There are a wide range of birds that live in the forest, including peregrine falcons and goshawks.