This Overview describes the waterways, highways, levees, historic flooding, water supply systems and political boundaries of the Delta to convey a basic understanding of the complexity of the Delta and its significance to the people of California. A PDF version of the Sacramento-San Joaquin Delta Overview is available on the World Wide Web by clicking here.

The Overview is based upon the Sacramento-San Joaquin Delta Atlas (Delta Atlas) and contains updated information for certain topics contained in the Atlas. The Delta Atlas was published in 1995 and is a more comprehensive look at the Delta. The Atlas is located at http://baydeltaoffice.water.ca.gov/DeltaAtlas/index.cfm.