Publisher
- Geological Survey (U.S.)22
- California. Department of Fish and Game. Marine Resources Region5
- National Atlas of the United States4
- Calaveras County GIS2
- Canada Centre for Mapping2
- County of Santa Cruz Information Services Department2
- Instituto Nacional de Estadística, Geografía e Informática (Mexico)2
- Jasper Ridge Biological Preserve (Agency)2
- Placer County Geographic Information Systems2
- Sacramento County GIS2
- Santa Clara Valley Water District (Calif.)2
- Analyse Diachronique de l'espace Urbain Parisien: Approche Geomatique1
- California Geological Survey1
- Coastal and Marine Geology Program (Geological Survey). Woods Hole Field Center1
- County of San Mateo Information Services Department1
- Solano County Department of Information Technology1