River delta The Okavango Delta in Botswana is one example. The generic term "mega delta" can be used to describe very large Asian river deltas, such as the Yangtze, Pearl, Red, Mekong, Irrawaddy, Ganges-Brahmaputra, and Indus. The formation of a delta is complicated, multiple, and cross-cutting over time, but in a simple delta three main types of bedding may be distinguished: the bottomset beds, foreset/frontset beds, and topset beds. This three part structure may be seen in small scale by crossbedding. The Ganges/Brahmaputra combination delta, which spans most of Bangladesh and empties into the Bay of Bengal, is the world's largest delta.
Mobile–Tensaw River Delta Mobile–Tensaw River Delta The Mobile–Tensaw River Delta is the largest river delta and wetland in Alabama. It encompasses approximately in a area and is the second largest delta in the Contiguous United States. The delta's northernmost point is the confluence of the Tombigbee and Alabama rivers and follows a southerly direction that ultimately opens into the head of Mobile Bay through the Mobile, Tensaw, Apalachee, Middle, Blakeley, and Spanish rivers near the Battleship Parkway. It is contained within sections of Baldwin, Clarke, Mobile, Monroe, and Washington counties. The Mobile–Tensaw delta is ecologically important and includes a wide variety of habitats,