[BLACK HILLS]. Preliminary Report of the Dakota School of Mines upon the Geology, Mineral Resources and Mills of the Black Hills of Dakota. Rapid City: [Republican Job Rooms,] 1888. 8vo. Illustrated with color-printed map, several diagrams, and a fold-out view of the Tamp Mill. Inscribed on the front wrapper: ?Compliments of the Authors?. (A few ink corrections by hand throughout the text). Original printed wrappers (wrappers worn, soiled, text toned with some occasional edgewear, ?2? in red ink on the front wrapper in an unknown hand, inkstamp of the Department of Physics and Chemistry of Ohio University). A rare study of the mineral resources and mills in the Black Hills.