Creator
- Geological Survey (U.S.) Minerals Information Team8
- California. Division of Mines and Geology6
- California Geological Survey3
- California. Department of Conservation2
- Godt, Jonathan W.2
- California. Department of Fish and Game. Marine Resources Region1
- Geological Survey (U.S.)1
- National Atlas of the United States1
- Rukstales, Kenneth S. (compiler)1