Publisher
- Bay Area Open Space Council21
- California. Division of Mines and Geology10
- California Geological Survey7
- Monterey County (Calif.)3
- County of Santa Cruz Information Services Department2
- Jasper Ridge Biological Preserve (Agency)2
- California. Department of Fish and Game1
- County of San Mateo Information Services Department1
- Food and Agriculture Organization of the United Nations1
- National Atlas of the United States1
- Northeast Regional Ocean Council1
- Placer County Geographic Information Systems1
- San Joaquin County (Calif.). Community Development Department1
- U.S. Fish and Wildlife Service1
- World Resources Institute1