Cleophas Cisney O'Harra, Black Hills Handbook Company, 1913 - Black Hills (S.D. and Wyo.)
A chlorination plant was erected at Rapid City, S. D., in 1890. </p>
Photograph Rapid City The Gateway of The Black Hills, circa 1913
Creameries. The Rapid City Creamery makes butter and ice cream, circa 1913.
Early days two small hydro-electric plants were built at Rapid City and Hot Springs.
The State School of Mines, Rapid City, established 1885.
Photograph South Dakota State School of Mines, circa 1913.
