CLIMATE · INTELLIGENCE · OPEN

The state of the world's water,
rendered legible.

An open source platform for hydrological data — dams, reservoirs, streamflow, snowpack, groundwater. Built for researchers, operators, journalists and anyone who needs a clearer picture of the watershed.

— 02 / QUANTITY
QUALITY · COMING SOON
LIVE BASIN SNAPSHOT

U.S. major basins

View on map
Basin
Code
Storage
Flow
Updated
— 03 / DATA SOURCES

Every dataset is open, versioned and cited.

— 04 / WHY

Water data lives in dozens of disconnected systems — state agencies, federal observatories, private operators, satellite archives. The people who need it most spend days stitching it together.

We're building the stitching, in public.