Frith Wood nature reserve is a wonderful ancient beech wood that straddles the ridge overlooking the Painswick and Slad Valleys near Stroud.
The beech trees in Frith Wood are believed to be planted from Belgian seed sometime after the Napoleonic Wars.
The wood is home to rare plants such as wood barley, white helleborine and yellow bird's nest. In spring there is a lovely display of bluebells and wild garlic. Although small and rarely seen a very rare snail called Ena montana has been recorded here.
The nature reserve is part of a larger SSSI that includes Bull's Cross and Juniper Hill.