U.K.'s last deep coal mine closes Northwest Arkansas Democrat-Gazette

LONDON -- Coal once fueled the British Empire, employed armies of men and shook the power of governments.

Kellingley Colliery: Britain's last coal mine closes

Arkansas gets boost for ex-coal mines

Coal mining in the United States - Wikipedia

End of an Era: England Closes Its Last Deep-Pit Coal Mine - WSJ

Britain's last deep coal mine has closed - BBC News

Coal powered the industrial revolution. It left behind an

The end of deep coal mining in Britain: 'They've knocked us down

Britain's last deep coal mine has closed - BBC News

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Coal mining in the United States - Wikipedia

Judge says federal agency keeps ignoring environment in its coal

The Forever Mines: Perpetual Rights Risks from Unrehabilitated Coal Mines in South Africa

Tiny Jeddo Borough left its mark on world, News

Coal Mining - Encyclopedia of Arkansas