Question: What is the size in hectares of the Welsh forest that is located on a rock dome composed of Silurian shales , mudstones , and limestone ?

text: List of forests managed by the Forestry Commission
Forests in Wales

Prior to 2013, the Forestry Commission managed about one million hectares of land across Great Britain, including 660,000 hectares of forest in Scotland, 250,000 hectares in England and 126,000 hectares in Wales. In 2013 the Commission's forests in Wales were transferred to Natural Resources Wales, whilst Forestry and Land Scotland was established in Scotland in 2019 to own and manage Scotland's National Forest Estate. These forests range from small scale urban forests to many of the largest forests in Britain. The Forestry Commission was set up in 1919 to carry out afforestation programmes across Britain for timber production. It is also responsible for maintaining and developing recreational facilities within the forests.
Name Location Size ( hectares ) Description
Afan Forest Park Neath Port Talbot 11000 Afan Forest Park covers the Afan Valley and the surrounding area . The forest park contains several long distance cycle routes
Beddgelert Forest Snowdonia 700
Brechfa Forest Carmarthenshire 6500 Brechfa Forest has been a mixed commercial and recreational forest since it was placed under the management of the Forestry Commission in 1919 . The forest contains ancient woodland and was a royal hunting forest
Coed-y-Brenin Snowdonia 3600 Coed-y-Brenin has several mountain bike trails and has hosted races since 1991
Cwmcarn Forest Caerphilly 1200 The Forestry Commission created Cwmcarn Forest in 1922 over a former colliery
Dyfnant Forest Powys 2430 Dyfnant Forest has five horse riding trails , known as the rainbow trails
Fforest Fawr Powys  Fforest Fawr was the first Geopark in Wales . It lies within the Brecon Beacons National Park
Glasfynydd Forest Carmarthenshire / Powys  Glasfynydd Forest surrounds the Usk Reservoir and is mainly a coniferous forest
Gwydir Forest Snowdonia 7250 Gwydir Forest is one of several forests that the Commission planted across Welsh Mining areas . Gwydir now has several recreational facilities including walking and cycling routes
Hafren Forest Powys 13000 The forest is named after the River Severn ( Afron Hafren ) as the river rises close to the forest border . The Forestry Commission planted the forest in 1937 as a source of timber
Hiraethog Forest Denbighshire 6000 Hiraethog Forest is a large commercial pine forest in North Wales . Recreational facilities and Red Squirrels lie within Clocaenog Forest
Newborough Forest Anglesey 700 The Forestry Commission planted Newborough Forest in 1947 as part of its post-war afforestation efforts . It was primarily to stabilise the sand dunes near Newborough
Radnor Forest Powys 1500 Radnor Forest is mostly a commercial coniferous forest managed by the Forestry Commission . It has some waymarked footpaths and access for horse riding
Wentwood Newport / Monmouthshire  Wentwood is managed by several organisations , with the Forestry Commission carrying out commercial forestry operations in much of the Forest . The forest is an ancient forest , with much of the area replanted by the Commission with conifers