These are just some slate rubble hills, only about 100m high where they dumped everything they could not use or slate that was broken by the explosions. They actually used this slate quarry for some scenes in "Clash of the Titans". I hope to get some more 360 from this quarry because it is just amazing. More information can be found under http://en.wikipedia.org/wiki/Dinorwic_Quarry
Wales (Cymru in the Welsh language) is part of the United Kingdom of Great Britain and Northern Ireland. The major cities are Cardiff, Swansea, Newport and Bangor. The city of St. Davids is the smallest city in the UK with a population around 2000. Wales itself has a population of around 3 million. The Welsh language is spoken by around 20% of the population.