Publisher
- Geological Survey (U.S.)77
- Bay Area Open Space Council73
- Gap Analysis Program (U.S.)60
- University of Minnesota. Institute on the Environment49
- County of San Mateo Information Services Department48
- Monterey County (Calif.)33
- California. Department of Fish and Game. Marine Resources Region28
- Ocean Tipping Points Project28
- Northeast Ocean Data23
- National Geophysical and Solar-Terrestrial Data Center19
- United States. Bureau of Transportation Statistics19
- Santa Clara County (Calif.). Planning Office18
- County of Santa Cruz Information Services Department17
- Fire and Resource Assessment Program (Calif.)12
- National Atlas of the United States12
- California. Air Resources Board11
- California. Division of Mines and Geology11
- Coastal Services Center (U.S.)11
- Science11
- World Resources Institute11