Relief shown by spot heights.
Structure contour interval 10 feet. Key bed: fire clay coal.
"Petroleum, natural gas, and mining development correct to April 1, 1926."
"Base U.S.G.S. Hindman, Pikeville, Pound, Nolansburg, Whitesburg, and Cornettsville quadrangles."
Includes generalized geologic columnar section and 2 generalized structural cross sections.
Covers Letcher County, Kentucky.