Papers read before the Black Hills mining men's association at their regular monthly meetings, on the mining and metallurgy of Black Hills ores, together with a brief outline of the mining industry of the Black Hills, and some statistics relating to the output of gold from the district.
By: Pub. under the direction and supervision of the Black Hills mining men's association ...
Publisher: Omaha printing company
Published: 1904
Place of publication: Omaha
Subjects: Mines and mineral resources -- South Dakota