An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

Map: U.S. dams and reservoirs

The Global Reservoir and Dam Database (GRaND) is a survey listing about 7,000 larger dams and reservoirs worldwide, including 1,920 in the United States. Data includes such parameters as...
Snowpack dashboard screenshot

Map: daily nationwide snowpack

This map shows daily snowpack estimates for the contiguous United States since October 2003. Using the dropdown menu above the chart – or clicking a state on the map...

Data visualizations

The Water Desk develops, collects, and showcases innovative data visualizations, maps and graphics. We offer a series of interactive dashboards that allow you to explore data on water-related topics,...