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The geology of the Hartshorne coals (Desmoinesian) in parts of the Heavener 15' quadrangle Le Flore County, Oklahoma
(1978)
An 119-square-mile area within the Heavener 15' quadrangle, Le Flore County, in the eastern part of the Arkoma Basin, Oklahoma, was investigated to determine the geology of the coals in the Hartshorne Formation (Desmoinesian) ...