The Neman River Basin is a geographical area surrounding the Neman River, which flows through Belarus, Lithuania, and Poland. This basin covers approximately 27,000 square kilometers and is characterized by diverse ecosystems, including forests, wetlands, and agricultural lands. The river itself is about 937 kilometers long and is an important waterway for the region. The Neman River is known for its rich biodiversity, supporting various fish species and wildlife. It plays a crucial role in the local economy, providing water for irrigation and serving as a transportation route. The basin is also significant for its cultural heritage, with several historical sites located along its banks.