Backstone Bank and Baal Hill Woods one side valley, there is a small population of small-leaved lime, "Tilia cordata", which occurs here close to its northern limit and at an unusually high altitude. On base-rich soils, the woodland typically consists of ash, "Fraxinus excelsior", and wych elm, "Ulmus glabra", over an understorey of hazel, "Corylus avellana", and bird cherry, "Prunus padus", and a rich ground flora that includes lady-fern, "Athyrium filix-femina", male fern, "Dryopteris filix-mas", and hard shield-fern, "Polystichum aculeatum". On more acid soils, sessile oak, "Quercus petraea", and birch, "Betula sp.", are dominant. The under-storey, of hazel, holly, "Ilex aquifolium", rowan, "Sorbus aucuparia", and hawthorn,
Berry Mountain Berry Mountain Berry Mountain, east peak and west peak , is a prominent mountain in the Taconic Mountains of western Massachusetts. The mountain is located in Pittsfield State Forest. The west peak is traversed by the Taconic Crest hiking trail and the east peak is traversed by the multi-use Taconic Skyline Trail. The summits are mostly wooded with northern hardwood forest species, but also support a field of wild azaleas. A microwave tower stands on the east peak. A park loop automobile road and a campground, maintained for summer use, are located just to the north of the summits. Berry