@misc{indiciaef6fc345e59b6,
  title = {Control and deformation surveys at the Slumgullion Slide, Hinsdale County, Colorado– A progress report},
  author = {D. J. Varnes and W. K. Smith and W. Z. Savage and K. L. Varnes},
  year = {1993},
  doi = {10.3133/ofr93577},
  url = {https://pubs.usgs.gov/publication/ofr93577},
  note = {Source identifier: ofr93577}
}