Publisher
- California. Metropolitan Transportation Commission1
- City of Hayward1
- Inyo County (Calif.). Information Services Department1
- Merced County GIS Division (MCGIS)1
- Napa County (Calif.) -- Conservation Development and Planning1
- Placer County Geographic Information Systems1
- Riverside County (Calif.). Geographic Information Services1
- San Mateo County (Calif.)1
- Santa Rosa (Calif.). County Of Sonoma Gis Central.1
- Stanford University. Center for Spatial and Textual Analysis1
- Tehama County Public Works1
- UNEP World Conservation Monitoring Centre1