Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 8693, 1975 Jan; :1-322
This Bureau of Mines report delineates the coal reserve base of anthracite, bituminous and subbituminous coals, and lignite, by mining method and sulfur content, for coal-bearing states west of the Mississippi River. The parameters used to establish the reserve base definition are the result of a joint agreement by the federal Bureau of Mines and the U.S. Geological Survey. The reserve base of low-sulfur coal, < / = 1.0 percent sulfur, is 167,324.5 million tons; medium-sulfur coal, 1.1 to 3.0 percent sulfur, is 37,531.5 million tons; and high-sulfur coal, > 3.0 percent sulfur, is 11,244.1 million tons. The reserve base of coal with an unknown sulfur level is 18,323.0 million tons. The percentages of deep and strippable coal are 56 percent and 44 percent, respectively. The basis for reserve base estimates and analytical data for this report was the fuels availability system, a Bureau of Mines data bank containing numerous data on fossil fuels. Information contained in the system was obtained from publications of the Bureau of Mines, U.S. Geological Survey, state agencies, private publications, and company data.
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 8693