@misc{indiciae0d244ca3b4cf,
  title = {Preliminary geologic map of part of the Edgemont NE quadrangle, Fall River County, South Dakota, figure 1},
  author = {Garland Bayard Gott and P.F. Randolph and Peter Robinson},
  year = {1955},
  doi = {10.3133/ofr5551},
  url = {https://pubs.usgs.gov/publication/ofr5551},
  note = {Source identifier: ofr5551}
}