---
title: "Ghaggar-Hakra Monsoon Collapse"
year: 9500
country: "India"
canonical: "https://recap.at/9500/ghaggar-hakra-collapse"
slug: "ghaggar-hakra-collapse"
recapType: "global_event"
startDate: "9500-01-01"
---

# Ghaggar-Hakra Monsoon Collapse

> Climate deterioration and river system failures forced major population movements across proto-Indus Valley settlements, reshaping early South Asian settlement geography.

## Summary

The Ghaggar-Hakra River is an intermittent river in India and Pakistan that flows in force only during the monsoon season. The river is known as Ghaggar before the Ottu barrage, and as Hakra downstream of the barrage in the Thar Desert. In pre-Harappan times the Ghaggar was a tributary of the Sutlej. It is still connected to this paleochannel of the Sutlej, and possibly the Yamuna, which ended in the Nara River, presently a delta channel of the Indus River joining the sea via Sir Creek.

## Sources

- [Ghaggar-Hakra River](https://en.wikipedia.org/wiki/Ghaggar-Hakra_River) - Wikipedia

---
Canonical: https://recap.at/9500/ghaggar-hakra-collapse