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.
A deep valley with steep sides would be called a gorge or canyon.
That could be a ravine or a gully
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 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 cliff, a mountain, a ravine, a gorge, glacial valley, an arête, a cirque, a tarn. an escarpment are some possibilities.
Canyon
A deep valley with steep sides would be called a gorge or canyon.
fjord
A rift valley has steep narrow sides and a flat floor. A rift valley forms where the Earth's crust is spreading or splitting apart.
A ravine.
That could be a ravine or a gully
A Canyon
the river running through rock wear it down into deep valley with the steep sides what is it called
A canyon or chasm
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.
It's called a fjord.
Try "canyon".