Enderby, Marvin
Report on the Recovery of Gold from the Brown Ore of the Trojan Mining Company with a Redesign of the Existing Mill.
Thesis(B.S.)--South Dakota School of Mines and Technology, Rapid City, 1933.
Miller, David B.
A History of Bald Mountain Mining Company and Its Predecessors, 1877-1959. [1990?]
Waterland, Joel
Gold & Silver or Sweat & Tears, Rapid City, S.D.: Grelind PhotoGraphics & Typesetters, c1988.