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Publisher: United Mine Workers of America United Mine Workers of America (UMWA): A Brief History of the UMWA Historical account of this labor union for coal miners founded in 1890. Includes discussion of specific events in UMWA history (such as the Ludlow and Lattimer massacres), profiles of UMWA presidents, and a gallery of portraits of John L. Lewis (UMWA president from 1920-1960). From the national website for the UMWA. http://www.umwa.org/index.php?q=content/umwa-your-community Topics: Geology, Labor Last updated Jun 18, 2008 Underground Coal Mining 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. http://www.umwa.org/index.php?q=content/underground-coal-mining Topics: Geology, Industries, Technology Last updated Jun 18, 2008 |
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