@misc{indiciaec06e7f5ba375,
  title = {Preliminary photointerpretation map of landslide and other surficial deposits of the Byron area, Contra Costa and Alameda Counties, California},
  author = {T. H. Nilsen},
  year = {1972},
  doi = {10.3133/mf338},
  url = {https://pubs.usgs.gov/publication/mf338},
  note = {Source identifier: mf338}
}