@misc{indiciae5cc00f2a7572,
  title = {Reconnaissance geologic map of the Rockvale Quadrangle, Custer and Fremont counties, Colorado},
  author = {G. R. Scott and R. B. Taylor},
  year = {1974},
  doi = {10.3133/mf562},
  url = {https://pubs.usgs.gov/publication/mf562},
  note = {Source identifier: mf562}
}