Search the Kids Internet
Encyclopedia
> Coal mining
Article Content
Coal mining
Coal mining
is the
mining
of
coal
. It is usually done by
tunnel mining[?]
,
strip mining
or
open pit mining
All Wikipedia text is available under the terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
Featured Article
Fibre optic gyroscope
... dumped 2003-03-17 with ...