Creator
- United States. Bureau of the Census3
- County of San Mateo Information Services Department2
- United States. National Ocean Service2
- California. Department of Water Resources1
- California. Office of Statewide Health Planning and Development1
- Environmental Systems Research Institute (Redlands, Calif.)1
- Monterey County (Calif.)1
- O'Neill, Michael1
- U.S. Census Bureau. Geography Division1