@misc{indiciae5f7ee3a0baf8,
  title = {Geologic map of the Providence Mountains in parts of the Fountain Peak and adjacent 7.5' quadrangles, San Bernardino County, California},
  author = {Paul Stone and David M. Miller and Calvin H. Stevens and Jose J. Rosario and Jorge A. Vazquez and Elmira Wan and Susan S. Priest and Zenon C. Valin},
  year = {2017},
  doi = {10.3133/sim3376},
  url = {https://pubs.usgs.gov/publication/sim3376},
  note = {Source identifier: sim3376}
}