@misc{indiciae3d3db72a9bd5,
  title = {The surface of crystalline basement, Great Valley and Sierra Nevada, California: A digital map database},
  author = {Carl M. Wentworth and G. Reid Fisher and Paia Levine and Robert C. Jachens},
  year = {1995},
  doi = {10.3133/ofr9596},
  url = {https://pubs.usgs.gov/publication/ofr9596},
  note = {Source identifier: ofr9596}
}