fjord
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 canyon
marina trench
A canyon
deep: is down very low such as the ocean is deep steep: high narrow: thin wide: large or fat
A mesa is a small, high plateau with steep sides. These are often found in the southwestern part of the United States.
mountains
Fjord. An Fjord is a body of water open to the sea which is bordered on both sides by land, usually with steep cliffs, but not always.
A deep narrow valley with steep sides that sometimes has a stream or river flowing through it is called a gorge. Gorges are typically formed by the erosive action of flowing water over a long period of time, creating a dramatic and picturesque landscape.
mountin