Llandaff Cathedral in Wales plans to build an oyster-shaped visitor center. Wales has several mountain ranges including Snowdonia in the north which contains Snowdon, the highest peak. The Black Mountains are located in the eastern part of the Brecon Beacons National Park. The Cambrian Mountains in mid-Wales have only one main road crossing them and are remote. The Pembrokeshire Coast National Park follows the coast in western Wales. The valleys north of Cardiff and towns like Merthyr Tydfil were historically home to coal miners and industries but now have smaller populations.