Allt Boeth is located at the head of Cwm Rheidol a few miles east of Aberystwyth. Set dramatically among the steep ancient-wooded valley sides above the Rheidol gorge it is an area of predominately planted ancient woodland of former oceanic oak-birch woodland. Pine predominates but other planted species include larch spruce and beech. In places particularly where pine has been ring-barked in the past decade the semi-natural characteristics are returning. Allt Boeth provides a particularly special opportunity as a site for demonstrating and monitoring the process of restoring plantation ancient woodland through the transformation of even-aged stands to continuous cover forestry.