The large river delta found in Bangladesh is the Ganges-Brahmaputra Delta, also known as the Sundarbans. This delta is one of the largest in the world and is formed by the confluence of the Ganges and Brahmaputra rivers as they flow into the Bay of Bengal. It supports a diverse range of ecosystems, including dense mangrove forests, which serve as a crucial habitat for various wildlife and help protect the coast from erosion. The delta is also vital for the livelihoods of millions of people who rely on its fertile land for agriculture and fishing.