Publisher
- United States. Bureau of the Census. Geography Division20
- Geological Survey (U.S.)17
- U.S. Geological Survey14
- Bay Area Open Space Council12
- Sacramento County GIS3
- Santa Clara Valley Water District (Calif.)3
- Analyse Diachronique de l'espace Urbain Parisien: Approche Geomatique2
- United States. Bureau of Transportation Statistics2
- California. Metropolitan Transportation Commission1
- Environmental Systems Research Institute (Redlands, Calif.)1
- Humboldt County Planning and Building Department1
- Jasper Ridge Biological Preserve (Agency)1
- National Atlas of the United States1
- San Joaquin County (Calif.). Community Development Department1
- San Joaquin County (Calif.).Community Development Department1
- Tehama County Public Works1