@misc{indiciae3c60db99b98e,
  title = {Patterns and origin of radial dike swarms associated with West Spanish Peak and Dike Mountain, south-central Colorado},
  author = {Ross B. Johnson},
  year = {1961},
  doi = {10.1130/0016-7606(1961)72[579:paoord]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70220624},
  note = {Source identifier: 70220624}
}