California Reservoirs through Time

Click the reservoirs on the map above to see a history of water levels.

Reservoirs are only one measurement of water resources in California. If you want a more complete picture, look at the resources below.

Want to learn more?

  • California Water Resources
  • National Water Data
  • United States Drought Monitor
  • Voices of the Drought
  • USGS Drought Visualizations

    • Credits

    Made using public data by Alex Storer. Forkable on Github