@misc{indiciaefdeac13c9364,
  title = {Little Cone quadrangle, San Miguel County, Colorado},
  author = {A.L. Bush and O.T. Marsh and R. B. Taylor},
  year = {1959},
  doi = {10.3133/mf223},
  url = {https://pubs.usgs.gov/publication/mf223},
  note = {Source identifier: mf223}
}