Publisher
- California. Department of Water Resources54
- North American Cartographic Information Society22
- International Steering Committee for Global Mapping17
- United States. Bureau of the Census. Geography Division4
- California. Department of Fish and Game. Marine Resources Region2
- Environmental Systems Research Institute (Redlands, Calif.)2
- Wyoming Geographic Information Sciences Center2
- County of San Mateo Information Services Department1
- County of Santa Cruz Information Services Department1
- Monterey County (Calif.)1
- U.S. Fish and Wildlife Service1
- United States. Bureau of Transportation Statistics1