The Yenisei River is one of the longest rivers in the world, flowing approximately 3,487 kilometers (2,728 miles) through Mongolia and Russia. It originates in the Sayan Mountains and travels northward, eventually emptying into the Kara Sea in the Arctic Ocean. The river is known for its stunning landscapes and diverse ecosystems. The Yenisei basin is rich in natural resources and supports various wildlife, including fish species like taimen and lenok. The river also plays a crucial role in the local economy, providing water for agriculture and serving as a transportation route for goods and people.