@misc{indiciaeea6c2e64cfce,
  title = {Bright Angel and Mesa Butte fault systems of northern Arizona},
  author = {Eugene Merle Shoemaker and R. L. Squires and M. J. Abrams},
  year = {1978},
  doi = {10.1130/mem152-p341},
  url = {https://pubs.usgs.gov/publication/70227636},
  note = {Source identifier: 70227636}
}