Relief shown by spot heights.
Structure contour interval 10 feet. Key bed: top of Sunbury shale (Mississippian). Datum is mean sea level.
"Oil and gas correct to March 1, 1929."
Includes note and generalized stratigraphic section.
"Projected downward from surface structures as mapped on Fireclay coal by means of actual convergence to the northwest."
"Topography presented on U.S.G.S. Paintsville, Prestonsburg, Salyersville, Inez, and Harold quadrangles."
Covers Johnson County, Kentucky.