A deep valley with steep sides would be called a gorge or canyon.
A narrow valley is a V-shaped valley, or river valley. A narrow valley has steep sloped sides that look like the letter V. They are formed by a strong stream.
A deep narrow valley with steep sides is known as a canyon. Canyons are typically formed by the erosion of rock and soil by rivers over long periods of time. They can vary in size and depth, with some of the most famous examples being the Grand Canyon in the United States. Canyons often feature dramatic landscapes and unique ecosystems.
There are more than one term for a deep narrow valley. Glens, canyons, ravines, fjords are terms you could use.
Ravines are deep, narrow valleys with steep sides, typically formed by the erosion of fast-flowing water like a river or stream. They can vary in size and are often characterized by their rugged terrain and unique ecosystems. Ravines play important ecological roles by providing habitat for a variety of plant and animal species.
A ravine is a deep, narrow gorge with steep sides, typically carved by running water. It is smaller than a canyon and often has a stream or river flowing at the bottom.
Canyon
a deep, steep-sided, narrow river valley
Deep valley or creek with steep, narrow edges. Often a dangerous one that relates to death or the brink of death.
A ravine is a narrow, deep valley with steep sides typically formed by water erosion. It is often characterized by its rugged terrain and lack of vegetation.
A ravine.
the river running through rock wear it down into deep valley with the steep sides what is it called
A narrow valley is a V-shaped valley, or river valley. A narrow valley has steep sloped sides that look like the letter V. They are formed by a strong stream.
Try "canyon".
Such structure could be called a Canyon.
A deep narrow steep-sided valley formed by a river in the place where there is little rainfall .
A deep steep-sided valley formed by weathering and erosion is called a canyon. Canyons are typically formed by the gradual wearing away of rock by water and wind over long periods of time, creating a deep, narrow valley with steep sides.
The answer is COOKIEJOKING IT IS YOUR QUESTION NOT MINE SO HERE IS THE ANSWERCANYONCANYONcanyon