Synonyms of 'gulch'
A helicopter had crashed in a nearby gulch.
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A canyon is a long, narrow valley with very steep sides.
This trail leads down into the canyon.
A defile is a very narrow valley or passage, usually through mountains.
Thesaurus for gulch from the Collins English Thesaurus
A gulch is a long narrow valley with steep sides which has been made by a stream flowing through it.