Interested in identifying your California Groundwater Basin? I downloaded California Department of Water Resources groundwater basin .shp file and started a mini project converting it to a .kml file and colorizing each basin so that you could view them in Google Earth. The result is a beautiful colorful maze of groundwater basins throughout California.
Feel free to download it from the KML library link on the right side or here. You can also find an interactive map at the Groundwater Information Center.
You will need Google Earth to view it.