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Another name for deep gorge is canyon or ravine.
ravine
Ravine
A ravine is essentially a large "crack" in the surface. It is like a valley. This does not belong in the Nintendo DSi category though.
The seminar is in Rivet Ravine.
the ravine was so deep
My car crashed into a deep ravine.
A deep gully or valley.
the ravine was so deep that the man plunged in to the heavy rocks
The word "ravine" is a noun. It refers to a deep, narrow valley with steep sides typically carved by running water.
Ravine
Another name for deep gorge is canyon or ravine.
A ravine is a gully. Here are some sentences.He could not find a way around the deep ravine.The horse fell into the ravine, and they had to haul it out with ropes.A huge ravine divided the pasture in two.
ravine
ravine
I think it might be "coulee"
The term used for narrow deep valleys is "ravine."