Folks --
Check out this site. The American Coal Foundation. I found it quite interesting. Shows a map where all of the coal deposits lie in the US and much more. ( as mentioned earlier, almost all anthracite is in PA )
http://teachcoal.org/
I have also seen a new add on television lately which speaks the benefits of coal. It has a few links with some good information including the one above.
http://www.learnaboutcoal.org/