Creator
- California. Department of Water Resources48
- Bay Area Open Space Council8
- Conservation Lands Network8
- GreenInfo Network (Firm)8
- San Francisco Bay Area Upland Habitat Goals Project8
- United States. Bureau of the Census. Geography Division6
- United States. Bureau of Transportation Statistics4
- Vanderbilt Engineering Center for Transportation Operations and Research2
- Waterborne Commerce Statistics Center (U.S.)2
- County of San Mateo Information Services Department1
- Monterey County (Calif.)1
- NOAA Paleoclimatology Program (U.S.)1
- U.S. Fish and Wildlife Service1
- World Data Center for Paleoclimatology1