The Paraguay River is a major waterway in South America, flowing through the countries of Brazil, Paraguay, and Argentina. It stretches approximately 2,621 kilometers (1,630 miles) and serves as a natural border between Paraguay and Argentina. The river is an important source of water for agriculture and supports diverse ecosystems along its banks. The Paraguay River is part of the larger La Plata Basin, which includes other significant rivers like the Paraná and Uruguay. It plays a crucial role in regional transportation and trade, facilitating the movement of goods and people. The river also supports various fish species, making it vital for local fishing communities.