C
Cleophas C. O'Harra
1866 – 1935
13 works on record
Works
The White River Badlands
1920
O'Harra's handbook of the Black Hills
1913
The Badland formations of the Black Hills region
1910
The cement resources of the Black hills
1908
Mineral resources of South Dakota
1902
The geology of Allegany County ..
1900
The geology, mineralogy and scenic features of Custer state park, South Dakota
The geology, mineralogy and scenic features of Custer state park, South Dakota
1926
A bibliography of the geology and mining interests of the Black Hills region
A bibliography of the geology and mining interests of the Black Hills region
1917
The mineral wealth of the Black Hills
The mineral wealth of the Black Hills
1902
A history of the early explorations and of the progress of geological investigations in the Black Hills region
A history of the early explorations and of the progress of geological investigations in the Black Hills region
Devils Tower folio, Wyoming
Devils Tower folio, Wyoming
Belle Fourche folio, South Dakota
Belle Fourche folio, South Dakota
Papers on the Black Hills, 1902, 1913
Papers on the Black Hills, 1902, 1913