The Koyna River is a significant river located in the western part of India, primarily flowing through the state of Maharashtra. It originates in the Western Ghats near the town of Koynanagar and is known for its scenic beauty and rich biodiversity. The river is approximately 50 kilometers long and plays a crucial role in the region's ecology and agriculture. The Koyna River is also important for hydroelectric power generation, with the Koynanagar Dam built on it, creating the Koyna Hydroelectric Project. This project is one of the largest in India and contributes significantly to the country's energy supply. The river's waters are vital for irrigation and support local communities.