- Gap Analysis Program (U.S.)60
- Fire and Resource Assessment Program (Calif.)7
- Applied Science Associates4
- Dieter, Bryan E.4
- Endris, Charles A.4
- Golden, Nadine E.4
- Greene, H. G.4
- Moss Landing Marine Laboratories4
- San Joaquin County, Community Development, Geographic Information Systems3
- San Joaquin County (Calif.). Community Development Department2
- Santa Cruz County GIS2
- SeaPlan2
- Center for Habitat Studies, Moss Landing Marine Laboratories1
- Environmental Systems Research Institute (Redlands, Calif.)1
- Geological Survey (U.S.)1
- Humboldt County Community Development Services -- Advance Planning Division1
- National Atlas of the United States1
- Placer County Community Development Resource Agency-Geographic Information Systems Division1
- San Joaquin County, Community Development, Geographic Information Systems 1
- Shasta County (Calif.)1