@misc{indiciae7e31850ef31e,
  title = {Geologic map of the Leadville North 7.5’ quadrangle, Eagle and Lake Counties, Colorado},
  author = {Chester A. Ruleman and Theodore R. Brandt and Marc W. Caffee and Brent M. Goehring},
  year = {2018},
  doi = {10.3133/sim3400},
  url = {https://pubs.usgs.gov/publication/sim3400},
  note = {Source identifier: sim3400}
}