The Tietê River is a significant waterway in Brazil, flowing through the state of São Paulo. It stretches approximately 1,100 kilometers and is known for its role in the region's ecology and economy. The river is a vital source of water for agriculture and industry, supporting the densely populated areas along its banks. Historically, the Tietê River has faced pollution challenges due to urbanization and industrial activities. Efforts have been made to clean and restore the river, highlighting the importance of preserving natural resources. The river also contributes to the local culture, with various recreational activities enjoyed by residents and visitors alike.