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1. California Coastal Wetlands, 2006

2006. California. Department of Fish and Game. Marine Resources Region. This polygon shapefile was derived from the National Oceanic and Atmospheric Administration Coastal Change Analysis Program's Southern Coastal Cali...

2. California Cowcod Conservation Areas, 2003

2003. California. Department of Fish and Game. Marine Resources Region. This polygon shapefile depicts the Cowcod management boundaries based on California Code Title 14, section 150.06. This Conservation Area is part o...

3. Important Bird Areas: San Francisco Bay Area, 2008

California Audubon Society. The objective of this project was to digitally map the boundaries of Audubon California's Important Bird Areas (IBA). Existing Important Bird Areas...

4. Power Plant Entrainment (Polygons): Southern California, 2008

2008. California. Department of Fish and Game. Marine Resources Region. This polygon shapefile depicts the estimated extent of power plant entrainment in the Southern California Bight. Included in the attributes is scal...

5. Counties: California, 2010

Bay Area Open Space Council, San Francisco Bay Area Upland Habitat Goals Project, GreenInfo Network (Firm), and San Francisco Bay Area Upland Habitat Goals Project. This polygon shapefile depicts the nine counties of California. This data was derived from the United States Census Bureau Topologically Integrated... Bay Area Open Space Council.

6. Grazing Lands: San Francisco Bay Area, California, 2008

2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts grazing lands in the nine county San Francisco Bay Area Region, California. This data was derived from the Californi... Bay Area Open Space Council.

7. Hydrologic Sub Area Watersheds: San Francisco Bay Area, California, 2009

2009. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts a dissolve that was run on the Hydrologic Sub Areas for the nine county San Francisco Bay Area Region, California. H... Bay Area Open Space Council.

8. Impervious Surfaces: San Francisco Bay Area, California, 2009

Bay Area Open Space Council, Conservation Lands Network, GreenInfo Network (Firm), and San Francisco Bay Area Upland Habitat Goals Project. The National Land Cover Database 2001 (NLCD) for mapping zone 03 was produced through a cooperative project conducted by the Multi-Resolution Land ... Bay Area Open Space Council.

9. Land Use: San Francisco Bay Area, California, 2008

2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts land use for the nine county San Francisco Bay Area Region, California, originlly derived from the California Depart... Bay Area Open Space Council.

10. Rural Lands: San Francisco Bay Area, California, 2008

2010. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts rural lands in the nine county San Francisco Bay Area Region, California. This data was derived from the California ... Bay Area Open Space Council.

11. Urban Lands: San Francisco Bay Area, California, 2008

2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts urban areas in the nine county San Francisco Bay Area Region, California. This data comes directly from the Californ... Bay Area Open Space Council.

12. California Air Basins, 2004

2004. California. Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). . The California Air Basins layer is a polygon shapefile coverage representing the 15 California air basins, as defined in state statute and regulati... California. Air Resources Board.

13. California Air Districts, 2004

2004. California Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). . The California Air Districts layer is a polygon shapefile coverage representing the California air pollution control and air quality management dis... California. Air Resources Board.

14. California Counties: Air Resources Board, 2004

2004. Stephen P. Teale Data Center (Calif.). and California Air Resources Board. Planning and Technical Support Division. This polygon shapefile California represents the California county boundaries at moderate spatial resolution, aligned to match well with the ARB Ca... California. Air Resources Board.

15. Carbon Monoxide: California State Area Designations, 2008-2011

2008. California. Air Resources Board. Planning and Technical Support Division and United States. Environmental Protection Agency. This polygon shapefile contains area designations of carbon monoxide (CO) levels in California as required under Health and Safety Code section 396... California. Air Resources Board.

16. Federal NO2, SO2, and CO Area Designations: California, 2003

2003. California Office of Statewide Health Planning and Development. This polygon shapefile displays federal Nitrogen Oxide (NO2), Sulfur Dioxide (SO2), and Carbon Monoxide (CO) area designations contained in 40CFR81... California. Air Resources Board.

17. Federal Particulate Matter (PM10) Area Designations: California, 2003

2003. California Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). . This polygon shapefile displays particulate matter < 10 microns (PM 10) area designations pursuant to 40CFR81.305, the federal national ambient ... California. Air Resources Board.

18. Hydrogen Sulfide: California State Area Designations, 2008-2011

2008. Stephen P. Teale Data Center (Calif.). and California. Air Resources Board. Planning and Technical Support Division. This polygon shapefile contains area designations of hydrogen sulfide levels in California as required under Health and Safety Code section 39608. ... California. Air Resources Board.

19. One-Hour Ozone Areas: Federal Designations, California, 2003

2003. California Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). . This polygon shapefile contains federal one-hour ozone area designations and their classifications as per 40CFR81.305, part of the National Ambient... California. Air Resources Board.

20. Particulate Matter (PM-10): Federal Area Designations: California, 2011

2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile shows designated areas for particulate matter < 10 microns according to the 24-Hour National Ambient Air Quality Standard... California. Air Resources Board.