The Dora Baltea River is one of the main tributaries of the Po River. Its basin includes the entire Valle d’Aosta region, where it originates, and a small part of the Piemonte region. The Dora Baltea plays a crucial role in providing water to the downstream regions because most of its flow is regulated by many dams that collet and divert the water to meet several needs downstream. In addition, during summer, snow and glacial melting upstream contribute to the river discharge. The flow of the Dora Baltea is vital for various - often conflicting – purposes including agriculture, hydroelectric power production, tourism, sports and civil uses.