@misc{indiciae12b49c46e720,
  title = {Gravity anomaly and terrain maps of Washington},
  author = {Carol A. Finn and W.M. Phillips and D.L. Williams},
  year = {1991},
  doi = {10.3133/gp988},
  url = {https://pubs.usgs.gov/publication/gp988},
  note = {Source identifier: gp988}
}