@misc{indiciae9bc7a45ec5c0,
  title = {Hydrogeologic Provinces for California based upon established groundwater basins and watershed polygons},
  author = {Tyler D. Johnson and Kenneth Belitz},
  year = {2003},
  doi = {10.3133/ofr03470},
  url = {https://pubs.usgs.gov/publication/ofr03470},
  note = {Source identifier: ofr03470}
}