It is a Canyon as in the Grand Canyon.
fjord
A deep narrow valley with high steep sides caused by weathering and erosion is known as a canyon. Canyons are typically formed over long periods of time by the action of rivers, glaciers, or other natural forces cutting through the rock.
A 'hanging valley' is a valley which is cut across by a river flowing in a deeper valley.
It is a Canyon as in the Grand Canyon.
A steep valley is called a canyon or ravine. Valleys can have different shapes because of the shape of the land and what is eroding it. The canyons usually have steep sides. Other words that can refer to a steep valley include gully, hollow and gorge.
A canyon
A deep valley with high steep slopes that often has a stream running through it is called a canyon. Canyons are typically formed by the erosion of water over time, creating a distinctive geological feature.
A plateau is a flat elevated landform with steep sides, while a canyon is a deep valley with steep sides usually carved by a river. Plateaus are generally broad and flat on the top, while canyons have narrow bottoms and high vertical walls.
A canyon is a deep, narrow valley with steep sides typically formed by the erosion of water over time. The walls of a canyon can be vertical or sloping, and can vary in height depending on the geological processes that created it. Canyons are often carved out by rivers or glaciers, and can be found all over the world.
A valley carved by a stream in high mountains typically has a V-shaped profile, with steep sides and a narrow bottom. This shape is a result of the erosive power of the stream cutting down into the landscape over time, creating a deep, narrow channel.
The geological formation you are referring to is most likely a gorge. Gorges are narrow valleys with steep sides, usually formed by the erosive action of a river or glacier cutting through the land. They can be found in various landscapes around the world.
A narrow inlet of the sea between high steep cliffs is known as a fjord. Fjords are typically formed by glacial erosion during the Ice Age, resulting in a deep, narrow body of water with steep sides.