Publisher
- California. Department of Water Resources64
- Geological Survey (U.S.)10
- California. Department of Transportation8
- Fire and Resource Assessment Program (Calif.)7
- Humboldt County Building & Planning Department5
- California. Office of Statewide Health Planning and Development3
- California. Department of Fish and Game. Marine Resources Region2
- Gap Analysis Program (U.S.)2
- National Atlas of the United States1