Relief shown by spot heights.
Structure contour interval 10 feet. General key bed: Dean-Poplar Lick (fire-clay) coal.
"Oil, gas, and coal development correct to December 1, 1927."
Includes 2 structural sections, 7 stratigraphic sections, 1 correlation chart, and ancillary map showing "Division of field work."
"Base source: U.S.G.S., Middlesboro, Hagan, Harlan, and Cumberland Gap Quadrangles."
Covers Bell County, Kentucky.