Creator
- World Wildlife Fund14
- Geological Survey (U.S.)3
- Monterey County (Calif.)3
- Wyoming Geographic Information Sciences Center3
- County of Marin2
- Jones Stokes2
- National Atlas of the United States2
- Santa Clara Valley Water District (Calif.)2
- Santa Cruz County GIS2
- Butte County (Calif.) -- Geographic Information Systems1
- CDF, USGS, Sonoma Ecology Center: Compiled by County of Sonoma ISD GIS Central1
- California. Department of Water Resources1
- California. Metropolitan Transportation Commission1
- County of Napa ITS Department1
- Department of Public Works1
- Federal Emergency Management Agency (FEMA)1
- Feeney, Martin B.1
- Jasper Ridge Biological Preserve (Agency)1
- Kern County (Calif.) -- Engineering, Surveying and Permit Services1
- MarinMap1