Coal was king in this area until the first world war, when the prices crashed. The whole area has been in a state of urban decay ever since.
The rest of the pictures are here: http://pics.livejournal.com/labyrinthman/gallery/00051g2f
Not all of the rest of the gallery is urban decay as such, but is linked to the area. I have some pictures of the tombstones from the Hillcrest Mine disaster in 1914, some more industrial decay, etc. Its no Moscow, London, Toronto, or other major exotic urban centres, but decay takes place in the smaller urban locales as well.