Relief shown by spot heights. Includes map showing the location of coal locations, coal features, and railroads, as well as geological cross sections for several locations in Greene and Sullivan Counties. "Map based upon: Congressional land survey. Field work of this survey. County atlases of Greene and Sullivan Counties." Geology by G.H. Ashley and C.E. Siebenthal. Detached from: The coal deposits of Indiana / George Hall Ashley. In Indiana Department of Geology and Natural Resources twenty-third annual report, 1898. Indianapolis : Wm. B. Burford, 1899. Page 766.
Imprint: Indianapolis, Ind. : Wm. B. Burford, [1899]
Dimensions: 48 x 78 cm