What's new.

Newest first.

Sep 2026

v2.0 — Watershed map, live

Contours and flowlines drawn from fused lidar and gauge data.

Aug 2026

v1.6 — Community sensors

Rugged stations now deployable by anyone, anywhere.

Jul 2026

v1.5 — Groundwater wells

Well logs and water-table depth joined to the surface map.

Jun 2026

v1.4 — Water quality feed

Turbidity, DO, and temperature from in-river sensors.

Mar 2026

v1.0 — Public launch

The first 1,204 basins go live.