Why in news?
More than 300 trekkers were rescued near the Kalu River in Maharashtra’s Malshej Ghat after heavy rains caused a sudden rise in water levels. The operation lasted seven hours and exposed gaps in safety protocols for eco‑tourism.
Geographic overview
- The Kalu River originates in the Kalsubai–Harishchandragad Wildlife Sanctuary near the Pimpalgaon Joga Dam in Pune district. It flows westward through the Sahyadri ranges, forming dramatic waterfalls such as Kalu Falls (around 1,200 feet).
- The river is joined by tributaries like the Doifodi and Bhatsa rivers before merging with the Ulhas River near Atali village. The Ulhas eventually drains into Vasai Bay on the Arabian Sea.
Ecological and socio‑hydrological significance
- Kalu River flows through rich forests in the Kalsubai–Harishchandragad Sanctuary, home to leopards, snakes and other wildlife. Its waters cascade from the Deccan Plateau to the Konkan plains, creating scenic yet hazard‑prone landscapes.
- Experts note that the river’s course diverts rainwater that would otherwise flow into the Mula river system, contributing to water scarcity in parts of Ahmednagar and Marathwada. This highlights the need for better water‑diversion infrastructure to capture monsoon flows.
- While the river’s beauty attracts tourists, flash floods and slippery trails pose risks. The recent rescue demonstrates the importance of enforcing safety guidelines and monitoring weather conditions during trekking season.