The USGS: The Gold Standard

For more than a century, the U.S. Geological Survey has honed the science of water monitoring.

Satellite Data Complements Ground-based Measurements

But sensors in rivers and streams are still vital.

In Digital Information Age, Water Data Is Not Always a Click Away

Congressional support and funding is dropping for U.S. water monitoring networks.

Infographic: Recent Droughts in California (2000-2014)

The current three-year dry cycle is the state’s worst ever.

Map: California’s Hydraulic Empire

One of the world’s largest canal systems moves billions of gallons of water to where it does not naturally flow.