Celtic Rainforest is a colloquial term which refers to the temperate rainforest of Ireland and Great Britain. These woodlands are also variously referred to as Atlantic rainforest, Upland Oakwoods, Atlantic Oakwoods or Western Oakwoods. Today, the Celtic Rainforest exists as small fragments of the temperate rainforest that once covered much of Ireland and the west coast of Great Britain. The majority of these fragments occur on steep-sided slopes above rivers and lakes which have avoided clearance and intensive grazing pressure. There are notable examples in Ireland especially along its western coast, including the Beara Rainforest in West Cork,[1] the Great Forest of Aughty in Clare and Galway, Oldhead Wood in Mayo and Ardnamona Wood and Glenveagh in Donegal.[2] In Scotland, rainforest exists on the islands and shores of Loch Maree, Loch Sunart, Loch Lomond, and one of the best preserved sites on the remote Taynish Peninsula in Argyll. In Wales, they occur on steep-sided riverine gorges in Snowdonia and Mid Wales. In England, there are examples in the Lake District (Borrowdale Woods), and steep-sided riverine and estuarine valleys in South West England, including the Fowey valley in Cornwall, and the valley of the river Dart which flows off Dartmoor, and has rainfall in excess of 2 metres per year.[3]