A deep valley could be called a canyon, such as the Grand Canyon.
A rift valley.
This is the Rift Valley.
Another name for deep gorge is canyon or ravine.
celtic for valley is comb but i dont know about deep valley
deep valley i think :)
rifts
glen
Ria
Sindh.
The duration of Deep Valley is 1.73 hours.
The duration of Deep in the Valley is 1.6 hours.
The deep valley that lies along the east coast of Africa is called the East African Rift Valley. It is a tectonic plate boundary where the African Plate is splitting into two, causing the valley to form.