# Thjórsá river

The Thjórsá is a European river flowing through Iceland. No public discharge gauge currently reports on the Thjórsá.

**Canonical name:** Thjórsá

**Countries:** Iceland

**Maximum upstream drainage area:** 7,283 km²

**Mapped river length:** 78.9 km

**Gauging stations:** 0

## Gauging stations on the Thjórsá

No public discharge gauge is currently projected onto the Thjórsá in this dataset.

## Related rivers

-   [Drau](/rivers/drau.html)
-   [Thjórsá](/rivers/thjorsa-855.html)

## Data, sources & timestamps

Geometry is the HydroRIVERS network (HydroSHEDS): European reaches with at least 500 km² of upstream catchment, merged into chains between confluences. Flow direction comes from the network itself; river names are the canonical English label joined from provider metadata and Natural Earth, with local-language aliases retained.

Discharge is normalised observed streamflow from official national hydrology providers, measured where a gauge sits on the river and interpolated between gauges. Pale/estimated values are derived from drainage area × the local specific discharge of nearby gauges and are never presented as measurements.

Underlying dataset built 2026-10-16T13:31:53.036165+00:00. This page generated 2026-10-16T13:35:10.972Z. Discharge values carry their own observation dates in the table above.

[Explore the Thjórsá on the interactive map →](/)