Koyna Dam is one of the biggest dam in Maharashtra. It is located in Koynanagar District Satara. Koyna Dam constructed on Koyna River. The dam is famous for Hydroelectricity as it is one of the largest hydroelectric plants in India. The Dam plays important of flood controlling during monsoon season. The Koyna Nagar is a hill station in Sahyadri ranges. Koyna Dam is an Amazing Engineering Phenomenon.