A transboundary river is a river that crosses at least one political border, either a border within a state or an international boundary. Bangladesh has the highest number of these rivers, including two of the world's largest rivers, the Ganges and the Brahmaputra. Transboundary rivers Transboundary rivers by country Bangladesh Bangladesh has at least 58 major rivers that enter the country from the republic of India. The hydrologic and political effects of rivers that cross significant boundaries are enormous. Rivers have positive effects in that they carry a significant amount of sediment, which aids in building land in estuarine regions. However, this sediment raises the height of riverbeds, thereby causing flooding. International conventions governing water sharing have led to complex political disputes. The Naf River is the only river that flows via Bangladesh into Myanmar. External links Global Transboundary Protected Areas Network Universities Partnership for Transboundary Waters Publication and Information Resources Bibliography on Water Resources and International Law. Peace Palace Library Notes