RESERVE BASE OF U. S. COALS BY SULFUR CONTENT - 1. THE EASTERN STATES.

The Bureau of Mines has compiled coal reserve data for the United States as of January 1, 1974, for bituminous and anthracite coalbeds 28 inches or more in thickness to a maximum depth of 1,000 feet and for lignite beds 60 inches thick or greater. These data were organized by State, county, coalbed, and rank. To evaluate the reserve by sulfur content, the reserve and analytical data from the Bureau of Mines energy data bank were synthesized using computer techniques. The reserve base in the Eastern States was determined to be 202. 3 billion tons. Bituminous coal accounts for the greatest reserve base: 161. 5 billion tons of deep-minable coal, and 32. 5 billion tons of strip-minable coal. Virtually all of the anthracite reserve base, 7. 3 billion tons, is minable by underground methods. All of the lignite, 1 billion tons, is strip minable. Subbituminous coal is not significant in the Eastern United States. About 14 percent of the bituminous coal reserve base, 26. 5 billion tons, contains 1. 0 percent or less sulfur. About 87 percent of the anthracite reserve base, 6. 3 billion tons, is low-sulfur coal.