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Coal Research and Development: to Support National Energy Policy
FIGURE 1.6 Domestic coal production since 1950 from surface and underground coal mines, illustrating the dramatic expansion of surface mining (concentrated primarily in the western states). SOURCE: EIA (2006a).
FIGURE 1.7 Historical trends in U.S. coal use by sector, showing the continued and steep rise in coal use for electric power generation as other uses have declined. SOURCE: EIA (2006a).
