Creator
- Alameda County Registrar of Voters 11
- Bay Area Open Space Council8
- California. Metropolitan Transportation Commission7
- Conservation Lands Network7
- GreenInfo Network (Firm)7
- San Francisco Bay Area Upland Habitat Goals Project7
- U.S. Department of Commerce, Bureau of the Census, Geography Division3
- City of Hayward2
- California. Farmland Mapping and Monitoring Program1