The slate produced from the Blaenau area is one of the highest quality roofing slates in the world, and gives the houses in [[Wales]] their characteristic blue roofs. Slate was mined via a variety of methods in the 19th century and all of these have left their mark on Blaenau, with the entire town and much of the surrounding countryside being blighted with slag heaps of slate spoil. Despite being in the centre of the [[Snowdonia National Park]], the gray slag that surrounds the town prevents it from being officially included in the designated Park area. Current plans to deal with this slag are being challenged by an environmental pressure group <ref> [http://www.walesdirectory.co.uk/swag.htm The Slate Waste Action Group (SWAG)] opposes plans to transport the slag to the North Wales coast. </ref> | The slate produced from the Blaenau area is one of the highest quality roofing slates in the world, and gives the houses in [[Wales]] their characteristic blue roofs. Slate was mined via a variety of methods in the 19th century and all of these have left their mark on Blaenau, with the entire town and much of the surrounding countryside being blighted with slag heaps of slate spoil. Despite being in the centre of the [[Snowdonia National Park]], the gray slag that surrounds the town prevents it from being officially included in the designated Park area. Current plans to deal with this slag are being challenged by an environmental pressure group <ref> [http://www.walesdirectory.co.uk/swag.htm The Slate Waste Action Group (SWAG)] opposes plans to transport the slag to the North Wales coast. </ref> |