@misc{indiciaed911fc84841a,
  title = {Structure contours on Lower Lakota sandstone, SW corner, Minnekahta quadrangle, South Dakota, fig. 4},
  author = {Garland Bayard Gott and Edwin Van Horn Post},
  year = {1955},
  doi = {10.3133/ofr5550},
  url = {https://pubs.usgs.gov/publication/ofr5550},
  note = {Source identifier: ofr5550}
}