Publisher
- California. Farmland Mapping and Monitoring Program46
- International Heat Flow Commission37
- California. Department of Fish and Game. Marine Resources Region16
- San Francisco (Calif.). Department Of Telecommunications and Information Services.16
- Geological Survey (U.S.)15
- California. Department of Fish and Game14
- Environmental Systems Research Institute (Redlands, Calif.)12
- National Atlas of the United States11
- San Rafael (Calif.). County Of Marin Community Development Agency.9
- Northeast Ocean Data8
- California. Department of Water Resources7
- Fire and Resource Assessment Program (Calif.)5
- California Geological Survey4
- California. Air Resources Board4
- United States. Department of Housing and Urban Development4
- County of San Mateo Information Services Department3
- Instituto Nacional de Estadística, Geografía e Informática (Mexico)3
- Monterey County (Calif.)3
- Napa County (Calif.). County Of Napa.3
- California. California Department Of Forestry and Fire Protection.2