Jim, interesting question. Here's something from "Anthracite Trust" by Aileen Sallom Freeman (published by FOSI, Ltd., Paupack PA, 1994), p.125: "(Pennsylvania has about 95% of the world's anthracite coal supply. Small deposits in New Mexico and Rhode Island, USA, and Wales, in Great Britain, are generally not commercially viable. Other anthracite areas currently mined include what was formerly the USSR, North Korea, China, South Korea, and Germany. But only Pennsylvania with its vast reserves could mount the kinds of commercial operations that existed in the 19th Century.)" There are no footnotes and only a small biblio, but an author/publisher note says "the publisher will retain copies of the basic documents as a special collection, and will provide specific bibliographic references upon written request." Anne