Underground Coal Mining


Subject:
Geology , Technology , Industries , Mining , Mining

Description:
Brief, illustrated descriptions of types of coal mines and mining techniques. Covers room and pillar mining, longwall mining, and surface mining. From the United Mine Workers of America labor union.

Publisher:
United Mine Workers of America (UMWA)

Language:
English

Source:
http://www.umwa.org/index.php?q=content/underground-coal-mining


PID= res:lii-14578