Oil and Gas Numbered

The files provided are relatively large in size and should be downloaded by "right-clicking" the download link and selecting "Save Target As...".

OGN-01: Oil and gas tests in South Dakota, 1957

  Map
  (1.94 MB)
OGN-02: Magnetometer map of Harding and Perkins Counties, South Dakota

  Map
  (2.17 MB)
OGN-03: Oil and gas tests in South Dakota, 1958

  Map
  (1.75 MB)
OGN-04: Magnetometer map of Corson, Dewey, and Ziebach Counties, South Dakota

  Map
  (2.28 MB)
OGN-05: Oil tests in Buffalo field and vicinity, Harding County, South Dakota

  Map
  (0.61 MB)
OGN-06: Oil tests in South Dakota before June 1961

  Map
  (0.66 MB)
  Map
  (5.68 MB)
OGN-07: Magnetometer map of Bennett and Washabaugh Counties

  Map
  (1.39 MB)
OGN-08: Magnetometer map of Todd and Mellette Counties

  Map
  (1.27 MB)
OGN-09: Magnetometer map of Custer, Fall River and Shannon Counties, South Dakota

  Map
  (1.95 MB)