Publisher
- Gap Analysis Program (U.S.)60
- California. Department of Water Resources34
- Bay Area Open Space Council25
- International Steering Committee for Global Mapping20
- United States. Department of Housing and Urban Development16
- United States. Bureau of Transportation Statistics15
- Environmental Systems Research Institute (Redlands, Calif.)11
- California. Air Resources Board5
- California. Department of Transportation5
- County of San Mateo Information Services Department5
- Fire and Resource Assessment Program (Calif.)5
- Northeast Ocean Data5
- World Data Center for Paleoclimatology5
- California. Department of Fish and Game. Marine Resources Region4
- Monterey County (Calif.)4
- United States. Bureau of the Census. Geography Division4
- United States. Environmental Protection Agency. Region IX2
- Applied Science Associates1
- Geological Survey (U.S.)1
- Sacramento County GIS1