- California Transportation Maps with multiple layers - Wealth of information. (Currently unavailable)
- California GIS maps Links to county and city government maps online. This list is now incorporated in the WME GIS script as well, for one-click access directly from WME.
NOTE: The Caltrans web site has been under revision. Some resources not available directly may be available from Caltrans via e-mail.
For mapping resources specific to individual cities and towns in the state, see California/Cities and towns.