| Area | Petaluma River | 
     
         | Topic | Climate: Annual Rainfall in the Lower Petaluma Calwater 1874-2000 | 
 
  
    |  | This is a map of rain gages in the Petaluma River sub-basin.  Displayed in the background are KRIS sub-basins, mean annual rainfall, and 1:100,000 scale USGS 
hydrography. |  | 
  
    |  |  |  | 
 To view metadata about a map layer, click on a link in the table below.
If you obtain KRIS on a CD and install it on your hard drive as a desktop program, you will have access to increased map capabilities such as zooming in/out, turning layers on/off, adding layers and changing legends.