Usually Dave sometimes Darren.
a canyon, gorge or vale
The material deposited by meltwater beyond the end of a glacier is called glacial outwash or outwash plain. It consists of sediments such as sand, gravel, and boulders that have been carried by the flowing meltwater and deposited as the glacier retreats.
A valley or a plain.
A valley or a plain.
An outwash plain is formed near glacial areas. The glacier melts and loses not only water, but solid deposits it has picked up over time. The deposits are carried away with the meltwater and deposited over a broad plain. The larger solid deposits like boulders are typically found near the glacier, while smaller deposits such as silt can be found at a fair distance from the glacier.
The main landforms in the Huang He (Yellow River) Valley include the Loess Plateau, which is characterized by extensive deposits of wind-blown silt, and the North China Plain, a fertile alluvial plain where the river flows. The valley also consists of deep gorges and terraced hillsides in some areas.
Outwash plains are formed by the deposition of sediment-rich water that flows from a retreating glacier. As the glacier melts, it releases large volumes of meltwater that carry sediments and debris, which are eventually deposited and spread out across the landscape. Over time, these sediments accumulate to form a flat, relatively featureless plain known as an outwash plain.
a plateau
outwash plain
Plateau
a plateau
Officially it is not recognised. It is just a verbal name due to its name Assam. It is called valley because majority land is valley. Actually the state has two valley - Brahmaputra and Barak valley. These names came from two main river of the State. With the name of Assam valley people wanted to indicate about whole state.